Math, asked by prabhasvarma35, 10 months ago

The mean of first 8 observations is 12.5 and the mean of next 7 observations is 5,
then the mean of all the observations is

Answers

Answered by firdousmehreen

3

Step-by-step explanation:

we have to multiply 12.5 ×8

and 7 with 5....

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