A Population of Scores Has µ = 50 and σ

Multiple Choice

A population of scores has µ = 50 and σ = 5.If every score in the population is multiplied by 3,then what are the new values for the mean and standard deviation?​

A) ​µ = 50 and σ = 5
B) ​µ = 50 and σ = 15
C) ​µ = 150 and σ = 5
D) ​µ = 150 and σ = 15