CompleteGATE Doubts Forum
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Which of the following assertions are CORRECT?

P: Adding 7 to each entry in a list adds 7 to the mean of the list
Q: Adding 7 to each entry in a list adds 7 to the standard deviation of the list
R: Doubling each entry in a list doubles the mean of the list
S: Doubling each entry in a list leaves the standard deviation of the list unchanged 

A) P, Q 

(B) Q, R 

(C) P, R 

(D) R, S 

asked Jul 11, 2016 in Other Subjects by CompleteGATE-AskUS (3,550 points) | 159 views

1 Answer

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Best answer

(C) P, R

answered Jul 11, 2016 by ebeisaac (13,250 points)
selected Jul 11, 2016 by CompleteGATE-AskUS
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