Latest Gate Aptitude Question SOLUTION: 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 dev

• Placement Papers
• /
• Gate

Gate Question Papers:

(#M40029670) GATE question GATE-Aptitude Keep an EYE

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
option
(A) P, Q
(B) Q, R
(C) P, R
(D) R, S

Asked In Gate Rats (10 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (1)   (3) Submit Your Solution