The mean and the variance of five observations are 4 and 5.20, respect – McqOptions

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1.	The mean and the variance of five observations are 4 and 5.20, respectively. If three of the observations are 3, 4 and 4, then the absolute value of the difference of the other two observations, is
A.	1
B.	7
C.	5
D.	3
Answer» C. 5

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