Calculate the mean deviation about the median of the following observation:22,24,30,27,29,31,25,28,41,42

Explanation

Median is the middle number of all the observation.

`22, 24, 25, 27, 28, 29, 30, 31, 41, 42 `


Here the Number of observations are Even then
Median `= (28 + 29)/2 = 28.5`
Median `= 28.5` and `n = 10`


Mean Deviation`=|d_i|=|`x`_i-28.5|`

`=(6.5+4.5+1.5+1.5+0.5+2.5+3.5+0.5+12.5+13.5)/(10)`

`=(47)/(10)`

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