-
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
-
- P, Q
- Q, R
- P, R
- R, S
- P, Q
Correct Option: C
P and R always holds true
Else consider a sample set {1, 2, 3, 4} and check accordingly.
