SOLUTION: the mean of 60 observations was 12. it was detected on rechecking that the value 180 was wrongly copied as 60 for the computation of the mean. find the correct mean.

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Question 859161: the mean of 60 observations was 12. it was detected on rechecking that the value 180 was wrongly copied as 60 for the computation of the mean. find the correct mean.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

value 180 was wrongly copied as 60 (120 shy)

correct mean = %2860%2A12+%2B+120%29%2F60 = 14