The missing choices are:
A. z-score = 92 - 83
B. z-score = (92 - 83)/5
C. z-score = 83 - 92
D. z-score = (92 - 83)/92
The expression she would write to find z-score is z-score = [tex]\frac{92-83}{5}[/tex] ⇒ B
Step-by-step explanation:
The rule of z-score is z = (x -μ)/σ, where
The scores of an eighth-grade math test have a normal distribution
∵ The mean is 83
∴ μ = 83
∵ The standard deviation is 5
∴ σ = 5
∵ Din’s test score was 92
∴ x = 92
- Substitute all of these values in the formula of z-score
∴ z-score = [tex]\frac{92-83}{5}[/tex]
The expression she would write to find z-score is z-score = [tex]\frac{92-83}{5}[/tex]
Learn more:
You can learn more about z-score in brainly.com/question/7207785
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Answer:
C on edg
Step-by-step explanation:
I just took the test
