With a raw score of 85,a group mean of 75,and a standard deviation of 5,what is the z score?
A)-2.0
B)2.5
C)2.0
D)-2.5

Name: With a raw score of 85,a group mean of 75,and a standard deviation of 5,what is the z score? A)-2.0 B)2.5 C)2.0 D)-2.5
Brand: Quizplus
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Question

Quizplus · Accepted Answer

To calculate the z-score, we use the formula:

z = (raw score - group mean) / standard deviation

Substituting the values given:

z = (85 - 75) / 5
z = 2

Therefore, the z-score is 2, which corresponds to option C).

With a Raw Score of 85,a Group Mean of 75,and