the mean of 15 observation is 16. if each observation in the data is decreased by 25% , what will be the new mean of the data?
( please give the answer with steps)
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sum of observation/no of ovservation
sum/15=16
summation of abservation=240
decrease of data = 240*25/100
=60
∴mean=60/15 or 4
sum/15=16
summation of abservation=240
decrease of data = 240*25/100
=60
∴mean=60/15 or 4
Answered by
14
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