Question

Suppose the test scores of students in a class are normally distributed with a mean of 92 and a standard deviation of 3.

What is the z-score for a student who scored 86 on a test?




A. −6

B. −2

C. 2

D. 6

Answer 1

Hello!

The mean is 92 with a deviation of 3

You count down by 3 till you reach 86

92 - 3 = 89

89 is -1 deviation

89 - 3 = 86

86 is -2 deviation

The answer is -2

Hope this helps!

Answer 2

Answer:

-2

Step-by-step explanation:

just took it