What is the lowest level of measurement for which it is permissible to calculate a mean?
A) nominal
B) ordinal
C) interval/ratio

Question

Quizplus · Accepted Answer

The lowest level of measurement that permits calculation of a mean is interval/ratio. This is because interval/ratio data involves numerical values that have a natural order, and the difference between values is meaningful. Nominal and ordinal data involve categories and rankings, respectively, which do not have numerical values that can be used to calculate a mean.

What Is the Lowest Level of Measurement for Which It