Question

formula of deviation method? how to do it ?show me an example?

Answer 1

Step-by-step explanation:

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.