Question

In a frequency distribution, €fiui=-50, n=100 , c=10 and x= 25, then Assumed mean A=

Answer 1

Solution :

Given ,

In a frequency distribution, €fiui=-50, n=100 , c=10 and x= 25, then Assumed mean A=?

A - (€fiui/n)×c = x

=> A - ( -50/100 )×10 = 25

=> A + 5 = 25

=> A = 25 - 5

=> A = 20

Therefore,

Assumed mean ( A ) = 20

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