The daily income of a sample of 50 employees are tabulated as follows. Find the mean daily income of employees.

Question

Philoid · Accepted Answer

No need to convert discontinuous classes into continuous for class mark because class mark of C.I are same and gives same result

∴ Assumed mean, a = 300.5

and d_i = (x_i - a)

= 300.5 + 2800/50

= 356.5

Hence, the average daily income of employees is Rs.356.5