Find average deviation of 1,2,3,4,5

Find average deviation of 25 and 31.

Find average deviation about mean

Find average deviation about median.

Find average deviation about mean and median for the observation 51, 52 55, 57 and 61 .

Find the mean deviation about the mean for the following data: 12,3,18,17,4,9,17,19,20,15,8,17,2,3,16,11,3,1,0,5 .

Find the mean deviation about the median for the following data: 3,9,5,3,12,10,18,4,7,19,21.

Find the mean deviation about the mean for the given data: 6,5,5.25,4.75,4.5,6.25,7.75,9

Find the standard deviation , varience and coefficient of varience 1,2,3,4,5.

Find the average value of current when the current that are equidistant are 4A, 5A and 6A.