Calculate the mean deviation from the mean for the following data :

4, 7, 8, 9, 10, 12, 13, 17

Given, Numbers of observations are given.

To Find: Calculate the Mean Deviation from mean.


Formula Used:


Explanation: Here, Observations 4, 7, 8, 9, 10, 12, 13, 17 are Given.


Deviation |d| = |x-Mean|


Mean =


Mean of the Given Observations =


And, The number of observations is 8.


Now, The Mean Deviation is



Mean Deviation =


Mean Deviation of the given Observations =


Hence, The Mean Deviation is 3


2