In a population of scores, X = 83 corresponds to z = -0.50 and X = 93 corresponds to z = +2.00.What are the values for the population mean and standard deviation?
A)$\mu$ = 85 and $\sigma$
= 4
B)$\mu$ = 85 and $\sigma$
= 2
C)$\mu$ = 81 and $\sigma$
= 4
D)$\mu$ = 81 and $\sigma$
= 6

Question

In a population of scores, X = 83 corresponds to z = -0.50 and X = 93 corresponds to z = +2.00.What are the values for the population mean and standard deviation?
A)$\mu$ = 85 and $\sigma$
= 4
B)$\mu$ = 85 and $\sigma$
 = 2
C)$\mu$ = 81 and $\sigma$
 = 4
D)$\mu$ = 81 and $\sigma$
 = 6

Quizplus · Accepted Answer

The Answer is A

In a Population of Scores, X = 83 Corresponds to Z