In step deviation method , `u_i` is given by ,

Find barX by step deviation method : Given : A = 2200. " "Sigma f_(i)u_(i) = - 15, " "Sigma f_(i) = 100 " and " g = 400 .

Using step deviation method, find the mean of following frequency distribution:

The mean of the data by step deviation method is Rs. 1390. Find the assumed mean (A), if Sigma f_(i) = 50, Sigma f_(i) u_(i) = 28 " and " g = 250 .

Using step deviation method, calculate the mean marks of the following distribution.

Using step deviation method, calculate the mean of the following data :

The mean of the data by step deviation method is 1896 . Find the value of g, if Sigma f_(i) u_(i) = 66, Sigma f_(i) = 100" and " A = 1500 .

Using step-deviation method, calculate the mean marks of the following distribution.

Solve Q.1 by step deviation method.

Using step-deviation method, calculate standard deviation of the following series: