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The Shape of Data: Distributions: Crash Course Statistics #7
 
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When collecting data to make observations about the world it usually just isn't possible to collect ALL THE DATA. So instead of asking every single person about student loan debt for instance we take a sample of the population, and then use the shape of our samples to make inferences about the true underlying distribution our data. It turns out we can learn a lot about how something occurs, even if we don't know the underlying process that causes it. Today, we’ll also introduce the normal (or bell) curve and talk about how we can learn some really useful things from a sample's shape - like if an exam was particularly difficult, how often old faithful erupts, or if there are two types of runners that participate in marathons! Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Justin Zingsheim, Nickie Miskell Jr., Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Divonne Holmes à Court, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, Robert Kunz, SR Foxley, Sam Ferguson, Yasenia Cruz, Daniel Baulig, Eric Koslow, Caleb Weeks, Tim Curwick, Evren Türkmenoğlu, Alexander Tamas, D.A. Noe, Shawn Arnold, mark austin, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, Cody Carpenter, Annamaria Herrera, William McGraw, Bader AlGhamdi, Vaso, Melissa Briski, Joey Quek, Andrei Krishkevich, Rachel Bright, Alex S, Mayumi Maeda, Kathy & Tim Philip, Montather, Jirat, Eric Kitchen, Moritz Schmidt, Ian Dundore, Chris Peters,, Sandra Aft, Steve Marshall -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 163943 CrashCourse
Describing Distributions in Statistics
 
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The four key points are discussed when describing distributions in statistics...Shape, Center, Spread, and Outliers. Please forgive the misspelling of DESCRIBED in the video. TIP to identify Left & Right Skewness: (Thanks LeBadman:) Left: Mean is less than Median is less than Mode Symmetrical: Mean, Median and Mode are approximately equal Right: Mean is greater than Median is greater than Mode You just take: Mean, Median, Mode If it's left skewed, you will see the inequalities pointing to the left. If it's right skewed, you will see the inequalities pointing to the right. Check out http://www.ProfRobBob.com, there you will find my lessons organized by class/subject and then by topics within each class. Find free review test, useful notes and more at http://www.mathplane.com
Views: 98873 ProfRobBob
Normal Distribution - Explained Simply (part 1)
 
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*** IMPROVED VERSION of this video here: https://youtu.be/tDLcBrLzBos I describe the standard normal distribution and its properties with respect to the percentage of observations within each standard deviation. I also make reference to two key statistical demarcation points (i.e., 1.96 and 2.58) and their relationship to the normal distribution. Finally, I mention two tests that can be used to test normal distributions for statistical significance. normal distribution, normal probability distribution, standard normal distribution, normal distribution curve, bell shaped curve
Views: 1130538 how2stats
Central limit theorem | Inferential statistics | Probability and Statistics | Khan Academy
 
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Introduction to the central limit theorem and the sampling distribution of the mean Watch the next lesson: https://www.khanacademy.org/math/probability/statistics-inferential/sampling_distribution/v/sampling-distribution-of-the-sample-mean?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Missed the previous lesson? https://www.khanacademy.org/math/probability/statistics-inferential/normal_distribution/v/ck12-org-more-empirical-rule-and-z-score-practice?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to KhanAcademy’s Probability and Statistics channel: https://www.youtube.com/channel/UCRXuOXLW3LcQLWvxbZiIZ0w?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 1335143 Khan Academy
02 - Normal Distribution
 
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Materials Looking at Data - Distributions Slides: Looking at Data Lecture Normal Distributions Lecture Looking at Data - Relationships Slides: Looking at Data - Relationships Lecture Producing Data Slides: Producing Data Lecture Objectives Examine distributions. Summarize and describe the distribution of a categorical variable in context. Generate and interpret several different graphical displays of the distribution of a quantitative variable (histogram, stemplot, boxplot). Summarize and describe the distribution of a quantitative variable in context: a) describe the overall pattern, b) describe striking deviations from the pattern. Relate measures of center and spread to the shape of the distribution, and choose the appropriate measures in different contexts. Apply the standard deviation rule to the special case of distributions having the "normal" shape. Explore relationships between variables using graphical and numerical measures. Classify a data analysis situation (involving two variables) according to the "role-type classification," and state the appropriate display and/or numerical measures that should be used in order to summarize the data. Compare and contrast distributions (of quantitative data) from two or more groups, and produce a brief summary, interpreting your findings in context. Graphically display the relationship between two quantitative variables and describe: a) the overall pattern, and b) striking deviations from the pattern. Interpret the value of the correlation coefficient, and be aware of its limitations as a numerical measure of the association between two quantitative variables. In the special case of linear relationship, use the least squares regression line as a summary of the overall pattern, and use it to make predictions. Recognize the distinction between association and causation, and identify potential lurking variables for explaining an observed relationship. Recognize and explain the phenomenon of Simpson's Paradox as it relates to interpreting the relationship between two variables. Sampling. Examine methods of drawing samples from populations Identify the sampling method used in a study and discuss its implications and potential limitations. Designing Studies. Distinguish between multiple studies, and learn details about each study design. Identify the design of a study (controlled experiment vs. observational study) and other features of the study design (randomized, blind etc.). Explain how the study design impacts the types of conclusions that can be drawn.
Views: 1812 Lollynonymous
AP Statistics: Exploring Data (ED) Video 1 - Data
 
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This video goes over data, variables, statistics, and the who, what, where, when, why, and how of data.
Views: 19022 Michael Porinchak
Describing the Shape, Center, and Spread of a Distribution
 
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This statistics lesson shows you how to describe the shape, center, and spread of the distribution by just examining the graph of the data given by a histogram or a dotplot. By inspecting the graph of a distribution, you could identify important statistic and behavior of your data by how the density curve forms it shape.
Views: 3964 Numberbender
Statistics Exam 1 Review Solutions
 
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Some problems explained for an exam review for an introductory statistics course. Exam review is available at: https://drive.google.com/open?id=10LNDl9eAk8IdfivbBOUKmeoUgDhuySJ6 Exam review answers are at: https://drive.google.com/open?id=1YgZjvQQyH_pxm0m-Rg2aY3AOawYcoBA-
Views: 28154 Patrick Byrnes
Overview of Some Discrete Probability Distributions (Binomial,Geometric,Hypergeometric,Poisson,NegB)
 
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A brief overview of some common discrete probability distributions (Bernoulli, Binomial, Geometric, Negative Binomial, Hypergeometric, Poisson). I discuss when these distributions arise and the relationships between them. I do not do any calculations in this video, or discuss the probability mass functions or other characteristics of the distributions. This video is simply an overview of the distributions that can either be used as a summary recap, or a quick introduction.
Views: 115920 jbstatistics
Chapter 4 - Comparing Distributions
 
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Comparing multiple quantitative distributions in one graphical display.
Views: 1547 Stat 201 at UTK
Normal Distribution in Hindi
 
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This video covers following topics of unit-5 of M-III: 1. Definition of Normal distribution 2. Problems on Normal distribution For any query and feedback, please write us at: [email protected] OR call us at: +919301197409(Hike number) For latest updates subscribe our channel " Bhagwan Singh Vishwakarma" or join us on Facebook "Maths Bhopal"...
Chapter 3-1: Displaying and Summarizing Quantitative Data
 
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Dotplots, Examining Distributions
Views: 230 Amybeth Phillips
Maths Tutorial: Describing Statistical Distributions (Part 1 of 2)
 
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VCE Further Maths Tutorials. Core (Data Analysis) Tutorial 9 - Describing distributions (Part 1 of 2). How to describe histograms, boxplots, stemplots, and dotplots talking about shape, outliers, centre and spread. For more tutes, visit http://www.vcefurthermaths.com
Views: 35350 vcefurthermaths
[FE Exam] NORMAL DISTRIBUTIONS Practice Problem
 
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http://www.prepineer.com | In this video, we grind down the details of solving an ENGINEERING PROBABILITY and STATISTICS problem, and more specifically, one involving the NORMAL DISTRIBUTION. Join along as we take you from concept to completion and gain a little insight in between for your upcoming ENGINEERING EXAM, the FE EXAM, or PE EXAM. ---- ► Subscribe to My Channel Here http://www.youtube.com/subscription_center?add_user=EngineerInTrainingTV ---- Justin Dickmeyer is a Licensed Professional Engineer, Entrepreneur and the CEO/Founder of Prepineer, a full-service FE Exam preparation experience developed in the trenches and distributed 100% online to students across 150+ countries around the world. Students who have taken part in the program stem from the most prominent Universities including MIT, Georgia Tech and the University of Illinois at Urbana-Champaign...as well as from Fortune 500 Engineering Firms such as Nasa, Boeing, Jacobs and AECOM. Struggling to surpass the consistent obstacles that flaunted themselves through the process of preparing for his Professional Engineering exams, Justin dreamed of an easier, more effective way to studying. A way that would leverage more of the time and effort he had already put in to learning while attending San Diego State University. That's when the seed of Prepineer was planted. In 2010, Justin set out to change the world of engineer exam preparation, with a vision to build the best learning experience inside and out...period...making Prepineer the best place for engineers to learn, teach, and create the online learning experience of the future. Today, nearly one half million lessons have been served throughout 150+ different countries around the world. From exploring new subjects, mastering key concepts, and everything in between, Prepineer offers students the personalized help they need to achieve their ultimate goal. Stay tuned for more projects as they are launched, more material to be distributed, more value to be had...as Justin and the Prepineer team change how #engineers prepare for the #feexam ...one #engineer at a time through #dedicated #hustle in the trenches day in day out ---- Thank you for watching this video. I hope that you keep up with the videos we post here on this channel, subscribe, and share your learnings with those that need to hear it. Your comments fuel our fire, they stoke our soul, so please take one second to give us simple holler below...say ‘Hey’ ;). ---- Follow Prepineer Online Here: Instagram: https://instagram.com/prepineer Prepineer Facebook: https://facebook.com/prepineer EngineerInTrainingExam Facebook: https://www.facebook.com/EngineerInTrainingExam Snapchat: https://www.snapchat.com/add/prepineer Website: http://www.Prepineer.com Website: http://www.EngineerInTrainingExam.com Twitter: http://twitter.com/prepineer
04 - Producing Data
 
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Materials Looking at Data - Distributions Slides: Looking at Data Lecture Normal Distributions Lecture Looking at Data - Relationships Slides: Looking at Data - Relationships Lecture Producing Data Slides: Producing Data Lecture Objectives Examine distributions. Summarize and describe the distribution of a categorical variable in context. Generate and interpret several different graphical displays of the distribution of a quantitative variable (histogram, stemplot, boxplot). Summarize and describe the distribution of a quantitative variable in context: a) describe the overall pattern, b) describe striking deviations from the pattern. Relate measures of center and spread to the shape of the distribution, and choose the appropriate measures in different contexts. Apply the standard deviation rule to the special case of distributions having the "normal" shape. Explore relationships between variables using graphical and numerical measures. Classify a data analysis situation (involving two variables) according to the "role-type classification," and state the appropriate display and/or numerical measures that should be used in order to summarize the data. Compare and contrast distributions (of quantitative data) from two or more groups, and produce a brief summary, interpreting your findings in context. Graphically display the relationship between two quantitative variables and describe: a) the overall pattern, and b) striking deviations from the pattern. Interpret the value of the correlation coefficient, and be aware of its limitations as a numerical measure of the association between two quantitative variables. In the special case of linear relationship, use the least squares regression line as a summary of the overall pattern, and use it to make predictions. Recognize the distinction between association and causation, and identify potential lurking variables for explaining an observed relationship. Recognize and explain the phenomenon of Simpson's Paradox as it relates to interpreting the relationship between two variables. Sampling. Examine methods of drawing samples from populations Identify the sampling method used in a study and discuss its implications and potential limitations. Designing Studies. Distinguish between multiple studies, and learn details about each study design. Identify the design of a study (controlled experiment vs. observational study) and other features of the study design (randomized, blind etc.). Explain how the study design impacts the types of conclusions that can be drawn.
Views: 248 Lollynonymous
Choosing which statistical test to use - statistics help.
 
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Seven different statistical tests and a process by which you can decide which to use. The tests are: Test for a mean, test for a proportion, difference of proportions, difference of two means - independent samples, difference of two means - paired, chi-squared test for independence and regression. This video draws together videos about Helen, her brother, Luke and the choconutties. There is a sequel to give more practice choosing and illustrations of the different types of test with hypotheses.
Views: 786289 Dr Nic's Maths and Stats
03 - Looking at Data Relationships
 
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Materials Looking at Data - Distributions Slides: Looking at Data Lecture Normal Distributions Lecture Looking at Data - Relationships Slides: Looking at Data - Relationships Lecture Producing Data Slides: Producing Data Lecture Objectives Examine distributions. Summarize and describe the distribution of a categorical variable in context. Generate and interpret several different graphical displays of the distribution of a quantitative variable (histogram, stemplot, boxplot). Summarize and describe the distribution of a quantitative variable in context: a) describe the overall pattern, b) describe striking deviations from the pattern. Relate measures of center and spread to the shape of the distribution, and choose the appropriate measures in different contexts. Apply the standard deviation rule to the special case of distributions having the "normal" shape. Explore relationships between variables using graphical and numerical measures. Classify a data analysis situation (involving two variables) according to the "role-type classification," and state the appropriate display and/or numerical measures that should be used in order to summarize the data. Compare and contrast distributions (of quantitative data) from two or more groups, and produce a brief summary, interpreting your findings in context. Graphically display the relationship between two quantitative variables and describe: a) the overall pattern, and b) striking deviations from the pattern. Interpret the value of the correlation coefficient, and be aware of its limitations as a numerical measure of the association between two quantitative variables. In the special case of linear relationship, use the least squares regression line as a summary of the overall pattern, and use it to make predictions. Recognize the distinction between association and causation, and identify potential lurking variables for explaining an observed relationship. Recognize and explain the phenomenon of Simpson's Paradox as it relates to interpreting the relationship between two variables. Sampling. Examine methods of drawing samples from populations Identify the sampling method used in a study and discuss its implications and potential limitations. Designing Studies. Distinguish between multiple studies, and learn details about each study design. Identify the design of a study (controlled experiment vs. observational study) and other features of the study design (randomized, blind etc.). Explain how the study design impacts the types of conclusions that can be drawn.
Views: 761 Lollynonymous
AP Statistics: Analyzing Categorical Data
 
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This video goes over displaying categorical data and how to examine a chart for marginal and relative marginal distributions. It also examines the idea of independence between variables. If you are interested in practice AP questions to help prepare you for the AP test in May please utilize Barron’s AP Statistics Question Bank. Access via the web or by downloading the app in iTunes or the Google Play Store. Links are below: Web: https://www.examiam.com/ap iTunes: https://itunes.apple.com/us/app/barrons-ap-statistics/id1438469502?mt=8 Google Play Store: https://play.google.com/store/apps/details?id=com.examiam.apstatistics
Views: 15286 Michael Porinchak
Measures of Dispersion: Skewness and Kurtosis
 
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Subject:Management Paper: Quntitative Techniques for Management Decisions
Views: 36056 Vidya-mitra
The Normal Distribution and the 68-95-99.7 Rule
 
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Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! :) https://www.patreon.com/patrickjmt !! The Normal Distribution and the 68-95-99.7 Rule. In this video, I talk about the normal distribution and what percentage of observed values fall within either 1, 2, or 3 standard deviations from the mean. One specific example is discussed. For more free math video, visit http://PatrickJMT.com
Views: 704462 patrickJMT
AP Stats Chapter 1 Review
 
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Views: 38833 Dan Martin
How to calculate interquartile range IQR | Data and statistics | 6th grade | Khan Academy
 
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Learn how to calculate the interquartile range, which is a measure of the spread of data in a data set. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6th/e/calculating-the-interquartile-range--iqr-?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade Watch the next lesson: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6-mad/v/mean-absolute-deviation?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6th-box-whisker-plots/v/interpreting-box-plots?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade Grade 6th on Khan Academy: By the 6th grade, you're becoming a sophisticated mathemagician. You'll be able to add, subtract, multiply, and divide any non-negative numbers (including decimals and fractions) that any grumpy ogre throws at you. Mind-blowing ideas like exponents (you saw these briefly in the 5th grade), ratios, percents, negative numbers, and variable expressions will start being in your comfort zone. Most importantly, the algebraic side of mathematics is a whole new kind of fun! And if that is not enough, we are going to continue with our understanding of ideas like the coordinate plane (from 5th grade) and area while beginning to derive meaning from data! (Content was selected for this grade level based on a typical curriculum in the United States.) About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy‰Ûªs 6th grade channel: https://www.youtube.com/channel/UCnif494Ay2S-PuYlDVrOwYQ?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 426907 Khan Academy
Normal Distribution - Statistics
 
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Learn about normal distribution and the normal curve in this video. To see all my videos visit http://MathMeeting.com.
Views: 153635 Math Meeting
Math Antics - Mean, Median and Mode
 
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Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
Views: 1199982 mathantics
How to find median of a continuous frequency distribution ?
 
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Learn how to find the median of a continuous frequency distribution from this video. To view more Educational content, please visit: https://www.youtube.com/appuseriesacademy To view Nursery Rhymes, please visit: https://www.youtube.com/appuseries To view Content in other Languages, please visit: www.youtube.com/appuseries + "Language". For Example for Hindi content: www.youtube.com/appuserieshindi To Buy Books and CDs, please visit : https://www.appuseries.com
Views: 247015 AppuSeriesAcademy
STUDY EVERYTHING IN LESS TIME! 1 DAY/NIGHT BEFORE EXAM | HoW to complete syllabus,Student Motivation
 
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HOW TO COMPLETE FULL SYLLABUS IN 1 DAY/NIGHT THAT MEANS IN AS LESS TIME AS POSSIBLE PAHLE TOH YE BATAO KI EK RAAT MEIN POORA SYLLABUS KHATAM KARNA HAI ISKA MATLAB PAHLE SE KYA KAR RHE THE ?KHAIR CIVIL BEINGS REGULARLY FOLLOW KARNE WALE JANTE HAIN CONSISTENCY KI IMPORTANCE. ANYWAYS…JO HO GAYA SO HO GAYA … FAIL HO GAYE TOH EK SAAL KHARAB….SO JITNA TIME BACHA HAI USKA FULL USE KARNA SIKHATA HUN MAIN AAP LOGON KO…. KAM TIME BACHA HAI AUR SUBJECT KHATAM KARNA HAI EXAM SE PAHLE…TOH I CAN HELP YOU WITH SOME IMPORTANT TIPS JO AAPKO SURELY HELP KARENGE….STEP BY STEP APPROACH HAI…LOGICAL HAI…UDI UDI BAATEIN NAHI HAIN … SABSE PAHLE TOH BELIEVE RAKHO…PAHLE BHI KAYI BAAR AAPNE ONE NIGHT PAHLE APNA SYLLABUS KHATAM KIYA HAI …. BUT LEARNING AISE NAHI HOTI… AAGE SE PLEASE AISA MAT KARNA….LAST MEIN EK POWER TIP DUNGA…USKO MISS MAT KARNA… BEHERHAAL…1. BELIEF RAKHO … KI AAP KAR SAKTE HO … starting mein aap bahut zyada fresha aur motivated rahoge…do ghante ke baad bura haal ho jata hai…toh belief strong belief rakhna zaruri hai…ki ho jaega…keep calm. 2. REVIEW KAR LO POORA SYLLABUS … AUR MARK KAR LO SABSE IMPORTANT AREAS …MARKS DISTRIBUTION KE HISAAB SE 3. KOSHISH KAREIN KI ATLEAST 70% SYLLABUS COVER HO JAYE. SELECT KAR LEIN VO KAM SE KAM TOPICS AUR CHAPTERS JINSE MILKE 70% QUESTIONS AATE HAIN. YE TOTAL SYLLABUS KA 40-50% HI HOTA HAI… 4. LOOK FOR THE NOTES AND MATERIAL. CHECK KAR LO PAHLE SE …AAPKE PAAS SARA MATERIAL HAI YA NAHI…AGAR NAHI HAI TOH ARRANGE IT NOW… 5. SARA MATERIAL MIL JANE KE BAAD…FIND A QUITE SPOT. …HAR DISTRACTION SE DOOR. …MOBILE…FEK DO…agar ab bhi aap khud ko control nahi kar pa rhe ho…toh fir Bhagwan bhi aapki madad nahi kar sakta…kitna bhi power tip mil jaye…kuch fayda nahi hona…distractions kill focus….SHANT JAGAH LEIN. GHAR WALON KO APNA TIME TABLE BATA DEIN. DOSTON KO PAHLE SE NAA KAH DEIN. POWER TIP … 6. TEXTBOOK MEIN SABSE PAHLE SUMMARIES DEKHEIN…AUR UNN TOPICS KO QUESTIONS KO EK BAAR PADH LEIN … ISSE KYA FAYDA HOGA ? ISSE JAB AAP PADH RHE HONGE USS TOPIC KO DETAIL MEIN TOH AAPKO PAHLE SE IDEA HOGA KI YE TERM, YA FIR ISSE RELATED QUESTION EXAM MEIN AAYA HAI …TOH USPE AAPKA ZYADA DHYAN JAEGA…. ------------------- CIVIL BEINGS CHANNEL IS TO EMPOWER STUDENTS WITH PRACTICAL KNOWLEDGE ABOUT LIFE AND ALSO HELPING UNDERPRIVILEGED STUDENTS IN TERMS OF HEALTHCARE AND EDUCATION. ---------------- JOIN ME PERSONALLY HERE www.facebook.com/civilbeings ------------- Chat with me here Instagram @civilbeings ----------- Support us on Patreon www.patreon.com/civilbeings --------- Subscribe! Share! Support!
Views: 7839044 CIVIL BEINGS
GRE Math Lessons, Test Preparation Review, Practice Questions, Tips, Tricks, Strategies, Study Guide
 
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This video tutorial provides gre math lessons that can help you prepare for your upcoming test. It contains plenty of examples and practice questions with solutions full of tips, tricks, and strategies to help you do well on this exam. This Gre test preparation review tutorial contains 40 multiple choice questions with an additional 95 questions in another video. Here is the rest of the video: https://vimeo.com/ondemand/gremath Here is a list of topics: 1. Quantitative Comparison Questions 2. Multiple Choice Questions 3. Data Interpretation Problems - Bar Graph, Pie Chart, & Data Table 4. Select all that apply questions 5. Fractions - Adding, Subtracting, Multiplying and Dividing 6. Improper Fractions and Mixed Numbers 7. Decimal to Fractions and Percentage Word Problems 8. Averages, Arithmetic Mean, Median, Mode and Range 9. System of Linear Equations With Two Variables 10. Evaluating Algebraic Expressions 11. Solving Quadratic Equations By Factoring 12. Using the Quadratic Formula 13. Area and Perimeter of a Rectangle 14. Surface Area and Volume of a Cylinder 15. Properties of Exponents 16. Ratios, Proportions, Rates, and Percent Based Word Problems 17. Probability - Red, Green, Blue, and Yellow Marbles 18. Probability - With and Without Replacement 19. Geometric Shapes - Rectangle, Triangle, Square, Circle, Cylinder, Sphere, Cone - Area, Perimeter, Surface Area, and Volume 20. Area of shaded region 21. Working Together Algebra Word Problems 22. Simplifying Complex Fractions 23. Solving Absolute Value Equations With Linear Inequalities 24. Simplifying Square Root and Radical Expressions With Decimals 25. Scientific Notation to Decimal Review 26. Pythagorean Theorem - Special Right Triangles 27. 30-60-90 Triangle and 45-45-90 Triangle Ratios 28. Unit Conversion and Rates 29. Intersecting Lines, Vertical Angles, Complementary & Supplementary Angles 30. Segment Addition Problems 31. Area of Sector and Arc Length of a Circle 32. Decimal to Fraction Examples 33. Composite and Prime Numbers 34. Slope Intercept Form - Graphing Linear Equations 35. Graphing Linear Inequalities - Shading 36. Algebraic Sentences into Equations 37. Even and Odd Consecutive Integers 38. Nickels, Dimes, and Quarters Word Problems 39. Simple Interest Algebra Word Problem 40. Age Related Word Problems - Past, Present, Future 41. Parallel and Perpendicular lines 42. Evaluating Algebraic Functions 43. Distance, Rate, Time Word Problems 44. Average Speed Word Problems 45. Permutations and Combinations 46. Fundamental Counting Principle 47. Standard Deviation Calculations 48. Probability Distribution, Statistics, Normal Distribution
Normal Distribution Word Problems Examples
 
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On example of working a normal distribution word problems, involving a lower cut off point. I also use the z-formula and z-table.
Views: 297472 Stephanie Glen
STATISTICS: Mean, Median, Mode - Class 10th & NTSE - 01/10
 
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Get Full Course Delivered at your Home: Call-9826023696 Visit our Website: https://www.m-learning.in Mail us at :[email protected] For Online Course: Download our app from Google Play Store and App Store Join Classroom Course at Indore. Branch of mathematics that deals with data to extract meaningful information is called statistics. Data - Facts or figures collected with a definite purpose are called data. They are mainly of two types: (i) Primary data (ii) Secondary data Data collected directly is called primary data. Data collected from other sources is called secondary data.
Views: 401560 M Learning India
AP Statistics: Binomial and Geometric Models
 
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This video explains the basics of the geometric and binomial models with a few basic examples. If you are interested in practice AP questions to help prepare you for the AP test in May please utilize Barron’s AP Statistics Question Bank. Access via the web or by downloading the app in iTunes or the Google Play Store. Links are below: Web: https://www.examiam.com/ap iTunes: https://itunes.apple.com/us/app/barrons-ap-statistics/id1438469502?mt=8 Google Play Store: https://play.google.com/store/apps/details?id=com.examiam.apstatistics
Views: 15373 Michael Porinchak
Probability Distributions for Revenue Management - Part 2 - Normal pdf
 
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In this video we examine the normal probability density function and how it is used in revenue management optimization models.
Views: 2066 RickZeniRMVideos
Distinguishing Distributions
 
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Statistics: looking at the shape, center, and spread of various distributions.
Views: 605 aconley5
AP Statistics: Combining Random Variables!
 
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This video covers how to combine random variables together with a discrete example and a continuous example. If you are interested in practice AP questions to help prepare you for the AP test in May please utilize Barron’s AP Statistics Question Bank. Access via the web or by downloading the app in iTunes or the Google Play Store. Links are below: Web: https://www.examiam.com/ap iTunes: https://itunes.apple.com/us/app/barrons-ap-statistics/id1438469502?mt=8 Google Play Store: https://play.google.com/store/apps/details?id=com.examiam.apstatistics
Views: 5409 Michael Porinchak
Statistics - Module 7 Video 1- Sampling and Sampling Distributions
 
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Go to http://statisticsworkbook.com/ to download the problems. Module 7 covers the topic of sampling distributions. We will first consider the differences between sampling from a finite versus and infinite population. This is followed by a few examples of point estimation for both a population mean and a population proportion. We then examine the sampling distributions of sample means and sample proportions. In both scenarios, we study expected values, standard deviation, variance and the relationship between sample size and sampling distribution.
Views: 594 Peter Dalley
Exploring Categorical Data
 
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This video was created by OpenIntro (openintro.org) and provides an overview of the content in Section 1.7 of OpenIntro Statistics, which is a free statistics textbook with a $10 paperback option on Amazon. In this section we will be introduced a couple of techniques for exploring and summarizing categorical variables.
Views: 19934 OpenIntroOrg
AP Statistics: Scatterplots and Correlation
 
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This video introduces the study of relationships between two variables, how to make scatter plots and examine them, and what correlation is. If you are interested in practice AP questions to help prepare you for the AP test in May please utilize Barron’s AP Statistics Question Bank. Access via the web or by downloading the app in iTunes or the Google Play Store. Links are below: Web: https://www.examiam.com/ap iTunes: https://itunes.apple.com/us/app/barrons-ap-statistics/id1438469502?mt=8 Google Play Store: https://play.google.com/store/apps/details?id=com.examiam.apstatistics
Views: 5903 Michael Porinchak
STAT 231 Review - 1
 
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Review of distributions from stat 230: - binomial - poisson - exponential - normal
Views: 225 Hartley Melamed
Sampling Distribution of the Sample Means
 
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This video serves as an introduction to an activity where learners examine three distinct characteristics of the sampling distribution of the sample means. This is accomplished using a graphing calculator to create a rough approximation of the sampling distribution of the sample means. This is a complimentary video from Dave Pilmer that aligns with the ALP Inferential Statistics Unit. Did you know you can download free print resources that align with our videos? Search "FREE Math Resources" on YouTube or go to http://gonssal.ca/General-Public/Documents-Resources/ALPLocalResources.shtml
Views: 2796 nsccalpmath
Contingency table chi-square test | Probability and Statistics | Khan Academy
 
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Contingency Table Chi-Square Test Watch the next lesson: https://www.khanacademy.org/math/probability/statistics-inferential/anova/v/anova-1-calculating-sst-total-sum-of-squares?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Missed the previous lesson? https://www.khanacademy.org/math/probability/statistics-inferential/chi-square/v/pearson-s-chi-square-test-goodness-of-fit?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to KhanAcademy’s Probability and Statistics channel: https://www.youtube.com/channel/UCRXuOXLW3LcQLWvxbZiIZ0w?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 329799 Khan Academy
STAT 200 Lesson 4 Lecture
 
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0:15 - Review 2:29 - Learning objectives 2:48 - 1. Construct and interpret sampling distributions using StatKey 3:36 - StatKey 10:42 - Review of terms 12:12 - 2. Explain the general form of a confidence interval 16:59 - 3. Interpret a confidence interval 23:47 - 4. Explain the process of bootstrapping 25:25 - Example: Single mean (data from Minitab Express) 29:53 - Example: Correlation 32:35 - 5. Construct bootstrap confidence intervals using the standard error method 35:02 - Example: Difference in two proportions 37:38 - Example: Single mean (data from Minitab Express) 39:24 - 6. Construct bootstrap confidence intervals using the percentile method in StatKey 40:21 - Example: Single mean (data from Minitab Express) 41:59 - Example: Single proportion 43:00 - Changing the confidence level 44:15 - Example: Slope 45:25 - 7. Construct bootstrap confidence intervals using Minitab Express 46:27 - Example: Single mean 48:34 - Example: Difference in two means 50:35 - 8. Describe how sample size impacts a confidence interval
Views: 3467 Penn State Statistics
AP Stats Test Quick Review: Describing Data with Numbers
 
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This is a quick video to help you prepare for the AP Stats test. The video covers analyzing data with measures of center and spread.
Views: 5532 Michael Porinchak
Chapter 15 Statistics | Misc. Exercise 15 || How to Find Easily Mean Mode Median Range
 
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Miscellaneous Exercise - 15 Q. No. 1. In a distribution frequency of class interval 3-5 is: Q. No. 2. Range of the following distribution will be. Q. No. 3. In the following distribution, number of students of age less than 25 years is. Q. no. 4. In a histogram, height of rectangle is Q. No. 5. The examination result of any class of a school can be comparatively studied. Q. No. 6.The range of distribution will be. Q. No. 7. In the distribution frequency of 5 will be. Q. no. 8. the median of will be. Q. No. 9. The mean of 15, 0, 10, 5 will be. Q. No. 10. In mode will be. Very short answer type question Q. No. 11. Write the frequency of class-interval 0 - 5 from the following distribution. Q. No. 12. If 7 is the mean of the number 5, 8, 4, x, 6, 9 then find the value of x. Q. no. 13. What is range? Q. No. 14. What is histogram? Q. No. 15. Make a frequency table of Q. No. 16. If arithmetic mean of frequency distribution is 15 and f = 20 then find the value of fx Q. No. 17. Find median of distribution Q. No. 18. Find median of distribution. Q. No. 19. Find mode of distribution
Views: 233 Mann Ki Ganit
Describing the shape of a graph
 
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Shape center spread and outliers are used to describe the shape of a dot plot
Views: 10772 Andrew Farrell
Statistics: Variance of a population | Probability and Statistics | Khan Academy
 
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Variance of a population. Watch the next lesson: https://www.khanacademy.org/math/probability/descriptive-statistics/old-stats-videos/v/statistics-sample-variance?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Missed the previous lesson? https://www.khanacademy.org/math/probability/descriptive-statistics/old-stats-videos/v/statistics-the-average?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to KhanAcademy’s Probability and Statistics channel: https://www.youtube.com/channel/UCRXuOXLW3LcQLWvxbZiIZ0w?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 754481 Khan Academy
The Probability Distribution Function (PDF) of [X]
 
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MIT 6.041SC Probabilistic Systems Analysis and Applied Probability, Fall 2013 View the complete course: http://ocw.mit.edu/6-041SCF13 Instructor: Jimmy Li License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 119132 MIT OpenCourseWare