Sometimes, mentioning Standard Deviation, Percentiles, or Normal Distribution to a person makes them want to run in the other direction as fast as they can. However, they're a vital part of GRE statistics, so you'll have to face up to them if you want a really great GRE quant score.
In this video, Harry -- a GMAT Ninja tutor -- will take the mystery out of these concepts. Starting from the basics and working up to some tough, challenging problems, he'll help you understand how to approach a question on these topics.
This is video #10 in our series of full-length GRE quant lessons. For updates on upcoming videos, please subscribe!
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Chapters:
00:00 Introduction
01:39 Question 1 - Introduction to Standard Deviation
09:02 Question 2 - Changing the Elements
15:07 Question 3 - Standard Deviation as a Variable
23:09 Question 4 - Using Percentiles
29:40 Question 5 - Percentiles Part II
35:02 Question 6 - Structure of a Normal Distribution
43:01 Question 7 - Problem Solving with the Normal Distribution