When events are classified into mutually exclusive categories on a nominal scale (e.g.,whether a behavior is present or absent),the most common descriptive statistic is
A) relative duration.
B) an average (arithmetic mean).
C) relative rank.
D) relative frequency.

Question

Quizplus · Accepted Answer

When events are classified into mutually exclusive categories on a nominal scale, the most appropriate descriptive statistic is relative frequency. This is because these categories do not have any inherent numerical value or order, making measures like arithmetic mean or relative rank irrelevant. Instead, the relative frequency (i.e., proportion) of events falling into each category is the most meaningful descriptor.

When Events Are Classified into Mutually Exclusive Categories on a Nominal