Math, asked by ashubhamj3673, 1 year ago

If the mean of 25 observation is 27 & each observation is decreased by 7,that will be the mew mean

Answers

Answered by twinkle200260

mean of 25 observation is 27
then sum of observation is 25×27=675
if 7 is subtracted from each no. then the sum will be
675-(25×7)=675-175=500
therefore the new mean is 500/25=20.
please mark it as brainiest.

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