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Author Question: Summarize the empirical rule. ... (Read 27 times)

hbsimmons88

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Summarize the empirical rule.

Question 2

The chapter notes that the standard deviation will always be larger than the mean absolute deviation. Explain why.



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jessofishing

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Reply #1 on: Aug 1, 2018
Answer to Question 1

For distributions that are bell-shaped and symmetrical: 1) About 68 of observations will fall within 1 standard deviation of the mean. 2) About 95 of observations will fall within 2 standard deviations of the mean. 3) Practically all observations will fall within 3 standard deviations of the mean.

Answer to Question 2

When the extreme values are squared, they affect a greater influence.



hbsimmons88

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Reply #2 on: Aug 1, 2018
TY



jessofishing

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Reply #3 on: Aug 1, 2018
You're welcome



 

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