Milicevic3306
asked
in Quantitative Aptitude
Mar 25, 2018
recategorized
Mar 17, 2021
by Lakshman Patel RJIT

0 votes

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