Math, asked by vikrant8988gmailcom, 1 year ago

I want to know the solution of this question

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Answered by mathupto12

Mean=56
Sum of heights of all the students/20=56
Sum of heights of all the students =1120
New sum=1120-66-56+61+57
=1120-122+118
=1120-4
=1116
New mean=1116/20
=55.8

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