Question

Find the mean
CI14-16 16-18 18-20 20-22 22-24.
3,2,54,7

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Answer 1

Answer:

CI:- f:- x:- f(x):-

14-16 3 15 3×15=45

16-18 2 17 2×17=34

18-20 5 19 5×19=95

20-22 4 21 4×21=84

22-24 7 23 7×23=161

€f=21 €f(x)=419

Mean=€f(x)/€f.

=419/21.

=19.95238095238.

I think this is your answer.