A.M of 40 observations of a variable is 25 and S.D is 4. The sum of sq – McqOptions

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1.	A.M of 40 observations of a variable is 25 and S.D is 4. The sum of squares of all observations is
A.	25640
B.	26540
C.	24560
D.	26450
Answer» B. 26540

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