Question

What is the formula for mean of step deviation ?

Answer 1

Answer:

So the formula of mean by this is : Where ui = ( xi – A) / h ; h = class width and N = Σ fi. Finding mean by using this formula is known as the Step Deviation Method.

Answer 2

Answer:

The formula for step deviation is

$A=a+(fiui/fi)l$

where a=assumed mean

           fidi=fi*ui(ui=(xi-a)/h)

               fi=sum of frequencies given

                l=lower boundary of the class

Hope it helps:)

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Step-by-step explanation: