Question

write the formula to find mean of a grouped data in step deviation method and explain its terms.​

Answer 1

Step-by-step explanation:

Deviation Method: Calculating the Mean by using Step Deviation Method. A= The middle value that is assumed as the mean for calculation, ∑i=1nfi= Sum of the frequencies given, can be denoted by N.

Answer 2

here,

x bar =mean

A= assumed mean

h = upper limit - lower limit

f¡ = frequency

u¡ = x¡-A/h