Which of the following assertions are CORRECT? P: Adding 7 to each entry in a…
GATE · 2012 · CS · General Aptitude
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
Attempted by 123 students.
Sign up free to check your answer
Sign up freeLoading lesson…