Q. 25.0( 3 Votes )

The number of tel

Answer :

Given, Numbers of observations are given.

To Find: Calculate the Mean Deviation


Formula Used: Mean Deviation =


Explanation.


Here we have to calculate the mean deviation from the median. So,


We know, Median in the even terms ,


Therefore, Median = 4


Let xi =Number of calls


And, fi = Frequency



N = 245


Mean Deviation =


Mean deviation for given data =


Hence, The mean deviation is 1.49


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