The formula to find mean by step deviation method is

Find the mean by step - deviation method:

The formula to find mean by direct method is ..........

Solve Q.1 by step deviation method.

The formula to find the mean deviation (overset-d) in Assumed mean method is ,

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 .

The formula to find mean by direct method is ,

In step deviation method , u_i is given by ,

Find the mean of the following distribution by step deviation method :