The mean of 5 observation is 5 and their variance is 124. If three of – McqOptions

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1.	The mean of 5 observation is 5 and their variance is 124. If three of the observations are 1, 2, 6, then the mean deviation from the mean of the data is
A.	2.5
B.	2.6
C.	2.8
D.	2.4
Answer» D. 2.4

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