Under the normal curve, the relationship between a specific z score and the percentage of cases falling between it and the mean
A) depends on the size of the standard deviation
B) depends on the value of the mean
C) depends on the value of the raw score
D) is a constant

Question

Quizplus · Accepted Answer

The normal curve is a standardized distribution with a mean of 0 and standard deviation of 1. Therefore, the relationship between a specific z score and the percentage of cases falling between it and the mean is always constant and can be found in a z table. For example, a z score of 1 represents the 84th percentile, meaning that 84% of cases fall between the mean and a z score of 1. This relationship does not depend on the size of the standard deviation, the value of the mean, or the value of the raw score.

Under the Normal Curve, the Relationship Between a Specific Z