Another useful measure of variation for a data set is the mean absolute deviation (MAD). It is

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Another useful measure of variation for a data set is the mean absolute deviation (MAD). It is calculated by the formula

MAD = ∑ |x - x̅| / n.

(a) Find the mean absolute deviation of the data set in Exercise 15. Compare your result with the sample standard deviation obtained in Exercise 15.

Data set in Exercise 15

(b) Find the mean absolute deviation of the data set in Exercise 16. Compare your result with the sample standard deviation obtained in Exercise 16.

Data set in Exercise 16

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Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: Nov 24, 2015 06:26 AM

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Another useful measure of variation for a data set is the mean absolute deviation (MAD). It is

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