With a mean of 100 and a standard deviation of 10, the standard normal deviate for a score of 95 is.
A)+1.0
B)+0.5
C)-0.5
D)-1.0

Question

Quizplus · Accepted Answer

The standard normal deviate (z-score) is calculated as (X - μ) / σ, where X is the score, μ is the mean, and σ is the standard deviation. For a score of 95, with a mean of 100 and a standard deviation of 10, the calculation is (95 - 100) / 10 = -0.5.

With a Mean of 100 and a Standard Deviation of 10