Suppose for 40 observations, the variance is 50. If all the observati – McqOptions

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1.	Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be______________?
A.	50
B.	70
C.	50/20
D.	50-20 = 30
E.	60
Answer» B. 70

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