Examples of Math Problems: The mean of 50 observations was 160. It was detected on rechecking that the value 175 was wrongly copied as 75 for the computation of the mean. Find the correct mean.

Thursday, April 3, 2014

The mean of 50 observations was 160. It was detected on rechecking that the value 175 was wrongly copied as 75 for the computation of the mean. Find the correct mean.

x=(160*50+100)/50=162

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