Find the mean using direct method. :

Find the mean by direct method :

Find the mean by direct method :

Marks ( out of 50) obtaned in Mathematics by 100 students is given in the following table. Find the mean by direct method and step deviation method :

The mean of the following distribution is 54. Find the value of p using direct method :

The mean of the following distribution is 25 . Find the value of p using direct method :

The mean of the following distribution is 25 . Find the value of p using direct method :

The mean of the following distribution is 54. Find the value of p using direct method :

Rainfall (in cm) recorded in 50 cities on a particular day. Find the mean rainfall by direct method.

Rainfall (in cm) recorded in 50 cities on a particular day. Find the mean rainfall by direct method.