please solve is ex :-
Attachments:
Answers
Answered by
3
Weight(x) (kg) Number of workers(f) fx
60 4 240
63 3 189
66 2 132
69 2 138
72 1 72
Total 12 771
Then arithmetic mean = Σfx / Σf
= 771 / 12
= 64.25 Kg
I hope it helps you
Similar questions