Math, asked by ayushirana2008, 5 days ago

Pls refer to the picture for the question.. And pls give explanation along with the answer.. Plssss

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Answered by suman5420

1

Mean of all the groups taken together = TotalCountTotalSum

Mean = ∑i=1nni∑i=1nnixiˉ

Answered by hadiya6431

1

hope it will work for you.

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