Question

If u;= x-25÷10 Σfu; = 20 and Σf = 100 then find​

Answer 1

Answer:

Correct option is

A

27

Mean=a+

∑f

i

∑f

i

u

i

×h,u

i

=

h

x

i

−a

a=25,h=10,∑f

i

u

i

=20,∑f

i

=100

Mean =25+

100

20

×10=27