Answer the following : Calculate S.D. from following data

Answer the following : Find the range of the following data.

Answer the following : Calculate coefficient of variation the following data: 23, 27, 25, 28, 21, 14, 16, 12, 18, 16

Answer the following : Calculate co-efficient of variation for the data given below:

Answer the following : Calculate co-efficient of variation for the data given below:

Answer the following : Find variance and S.D. for the following set of numbers. 25, 21, 23, 29, 27, 22, 28, 23, 21, 25

Answer the following : Find variance and S.D. for the following set of numbers. 125, 130, 150, 165, 190, 195, 210, 230, 245, 260

Answer the following : The means ans S.D. of weights and heights of 100 students of a school are as follows. Which shows more variability, weights or heights?

Answer the following : The mean and S.D. of a group of 50 observation are 40 and 5 respectively. If two more observations 60 and 72 are added to the set, find the mean and S.D. of 52 items.

Answer the following : Compute the variance and S.D. for the following data