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Author Question: Summarize the empirical rule.[br][br][b][color=gray]Question 2[/color][/b][br][br]The chapter notes ... (Read 76 times)

nmorano1

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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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debra928

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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.





 

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