Gate CS-2012 Question Paper With Solutions

Q. 64 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

Answer: (C)

Explanation:

Gate CS-2012 Question Paper With Solutions Gate CS-2012 Question Paper With Solutions Gate CS-2012 Question Paper With Solutions

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