The mean of 16 numbers is 8if 2 is added to each number what will be the new mean
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ANSWER : LET THEIR SUM BE S.
SO MEAN =S/16=8 .
IF TWO IS ADDED TO EACH NUMBER , THE SUM INCREASES 16×2=32.
TO FIND THE MEAN WE DIVIDE BY 16, SO MEAN=
(S+32)/15=8+2=10
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