Math, asked by manoj282, 1 year ago

10 is the mean of a set of 7 observations and 5 is the mean of a set of 3 observations the mean of the combined set is given by

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Answers

Answered by Ashutosh1111111111

4

$7 \times 10 + 5 \times 3 \div 7 + 3 = 8.5$

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