Find the coefficient of range of the scores 25, 30, 22, 34, 50, 56 and 67.

The coefficient of range of the scores 1, 2, 3, 4 and 5 is ______.

Find the range and the coefficient of range of the following series : 40 , 38 , 52 , 34 , 62 , 54 , 42 , 65

The coefficient of range of the data 20, 62, 43, 48, 13, 34, 39, is :

Find the mean of scores 50, 53, 54, 56, and 59.

Find the mean of scores 50, 53, 54, 56, and 59.

Find the median of the scores 75, 21, 56 , 36 , 81 , 05, 42

Find the median of the scores 75, 21, 56 , 36 , 81 , 05, 42