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GMAT Statistics Lesson Video #5 | Standard Deviation | Method and Properties

GMAT Online Preparation | GMAT Standard Deviation | Theory and Practice This one is a long video. This GMAT SD video is structured as follows 1. How to find standard deviation? Method 1 to find SD 2. Alternative method to find standard deviation. Verifying that the SD obtained in both methods is the same? 3. What is standard deviation? What does SD measure? 4. What is the effect on the SD of a set of numbers if a constant k is added to or subtracted from each element of the set? 5. What is the effect on the SD of a set of numbers if a constant k is multiplied with or if a constant k divides each element of the set? 6. What does "observations lying within 1 standard deviation of the mean" mean? 7. Which is better? A higher standard deviation or a lower one? 8. Can the SD of a set be 0? If so, what kind of a set will have 0 SD? Wizako offers the most comprehensive and affordable online GMAT Quant course @ https://gmat.wizako.com. Sign up today, and ace the GMAT maths section! Solve a variety of 600, 650, 700, and 750+ level questions on our site, and get access to GMAT-level, curated topic-wise quizzes and practice tests. We offer a self-paced online course, as well as live online courses taught by experienced faculty. Book your demo class today! Got 10 minutes? Get going with your GMAT prep. Take the FREE 10-minute GMAT sprint tests at https://wzko.in/ft Free GMAT Verbal and GMAT Quant practice questions @ https://qn.wizako.com Join Wizako's Intensive Weekend and Weekday GMAT coaching classes for GMAT quant and GMAT verbal at Chennai. Details of next batch @ https://classes.wizako.com/gmat/gmat-... If you are looking for assistance to edit your business school application essays and help in selecting the right business school, reach out to us at [email protected] #GMATQuant #GMATMathsQuestions #Inequalities #GMATOnlineCourse #GMATProblemSolving #GMATPractice #GMATQuestions #GMATAlgebra Sign up for the most comprehensive and affordable online GMAT quant course @ https://gmat.wizako.com and ace GMAT maths section. Free GMAT verbal and GMAT quant practice questions @ http://qn.wizako.com Join Wizako's Intensive Weekend and Weekday GMAT coaching classes for GMAT quant and GMAT verbal at Chennai. Details of next batch @ https://classes.wizako.com/gmat/gmat-... #GMATMathLessons #GMATQuantTutorials #GMATOnlineCourse #GMATOnlineCoaching