Question

Write the formula of Deviation Method.​

Answer 1

Answer:

ARITHMETIC MEAN OF GROUPED DATA USING STEP DEVIATION - FORMULA

Step Deviation Method: Calculating the Mean by using Step Deviation Method.

Mean,  

x

=A+h

∑

i=1

n

​

f

i

​

∑

i=1

n

​

f

i

​

u

i

​

​

Where,

h= Class size

u

i

​

=

h

x

i

​

−A

​

A= The middle value that is assumed as the mean for calculation,

∑

i=1

n

​

f

i

​

= Sum of the frequencies given, can be denoted by N.

Answer 2

Step-by-step explanation:

This is the deviation method formula for mean.