Q16 of 46 Page 278

Calculate the mean deviation about the mean for the following frequency distribution:

Given: the frequency distribution


To find: the mean deviation about the mean


Let us make a table of the given data and append other columns after calculations



Here mean,


So the above table with more columns is as shown below,



Hence Mean Deviation becomes,



Therefore, the mean deviation about the mean of the distribution is 3.84


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