Question

6. Find the mean of the following
distribution.
(a) The age of 20 boys in a locality is
given below.
Age in Years 12 10 15 148
Number of
5 3 2 6 4
Boys​

Answer 1

Answer:

12×5+10×3+15×2+14×6+8×4 ÷5+3+2+6+4

60+30+30+84+32÷20=11.8

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