Q1 of 40 Page 926

Find the mean deviation about the mean for the following data :

7, 8, 4, 13, 9, 5, 16, 18


We have, 7, 8, 4, 13, 9, 5, 16, 18


Mean of the given data is



The respective absolute values of the deviations from the mean , i.e. are


3, 2, 6, 3, 1, 5, 6, 8


Thus, the required mean deviation about the mean is




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2

Find the mean deviation about the mean for the following data :

39, 72, 48, 41, 43, 55, 60, 45, 54, 43


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Find the mean deviation about the mean for the following data :

17, 20, 12, 13, 15, 16, 12, 18, 15, 19, 12, 11


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Find the mean deviation about the median for the following data :

12, 5, 14, 6, 11, 13, 17, 8, 10


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Find the mean deviation about the median for the following data :

4, 15, 9, 7, 19, 13, 6, 21, 8, 25, 11