Math, asked by Sveta, 10 months ago

for a set of 500 observations variance is found to be 125.If 25 is added to each observations and 55 is subtracted then the new variance is?

Answers

Answered by hinglajsinghrathore2

0

I think 117.5

Because

5oo/125 = 500+25-55/X

On cross multiply

X=117.5

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