Math, asked by denish4576, 1 year ago

A data of n observation have mean 2x while another data set of 2nobservation has mean x.then the mean of the combined data set of 3n observation will be......?

Answers

Answered by dsasancia
0

n obsr. Mean = 2x

Thus total sum of obsr =2xn


Same with other

Thus total is=2nx=2xn


Total 2xn +2xn = 4 xn


No. Of terms now=n+2n

=3n


Thus mean =4xn/3n=4x/3


And 4x/3


Happy to help! :-D

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