abates950 abates950

16-04-2018
Mathematics

contestada

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

Respuesta :

prestonshelton prestonshelton

16-04-2018

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 Link

metasmith32 metasmith32

16-09-2021

Answer:

-2

Step-by-step explanation:

just took it

Answer Link

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