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

Find mean, variance and S.D. of the following data.