What is the z score for a raw score of 85 where the group mean is 75, and the standard deviation is 5?
A)−2.0
B)2.5
C)2.0
D)−2.5

Question

Quizplus · Accepted Answer

The formula for calculating z score is:
z = (X - μ) / σ

Here,
X = 85 
μ = 75
σ = 5

Plugging these values into the formula, we get:
z = (85 - 75) / 5
z = 2

Therefore, the z score for a raw score of 85 is 2. Hence, the correct answer is option C.

What Is the Z Score for a Raw Score of 85