A set of data with 100 observations has a mean of 267. There are six outliners in the data set, which have a mean of 688 if the six outliners are removed, what is the mean of the new data set?
Mathematics · High School · Thu Feb 04 2021
Answered on
Given : Mean of 100 observations = 267
Mean of 6 outliners = 688
Total = 267×100
= 26700
Total of 6 outliners = 6 × 688
= 4,128
Total When outliners are removed = 26700 - 4128
= 22,572
Now, Mean of remaining 94 observations
= 22,572/ 94
=240.12
Therefore, the mean of 94 observations are 240.12.