Find the mean deviation from the mean for the following data: Size: 1 3 5 7 9 11 13 15 Frequency: 3 3 4 14 7 4 3 4

Explanation

First we have to construct a table for the given data. Please refer to video for creating complete table.

From the table,

`sum f_i = 42`

`sum f_i x_i = = 336`


Now, Mean ` = (sum f_i x_i)/(sum f_i ) = 36/42 = 8`

Now, we will find the deviation from the mean for each `x_i.`

`:. |d_i| = 7,5,3,1,1,3,5,7`

...