Given, Numbers of observations are given.

To Find: Calculate the Mean Deviation.

Formula Used: Mean Deviation =

Explanation: Here, Observations 36, 72, 46, 42, 60, 45, 53, 46, 51, 49 are Given.

Deviation |d| = |x-Mean|

Mean =

Mean of the Given Observations =

And, The number of observations is 10

Now, The Mean Deviation is

Mean Deviation =

Mean Deviation of the given Observations =

Hence, The Mean Deviation is 7.4