For a population with a standard deviation of σ = 10,what is the z-score corresponding to a score that is 5 points below the mean?
A)z = 0.50
B)z = 1.00
C)z = -0.50
D)z = -1.00

Question

Quizplus · Accepted Answer

The z-score is calculated by subtracting the mean from the score and then dividing by the standard deviation. In this case, a score that is 5 points below the mean would have a z-score of -5/10 = -0.50.

For a Population with a Standard Deviation of σ =