A professor wants to determine the male-female ratio in his college. He designs a questionnaire in which a respondent only needs to choose between two choices, male and female. The scale used by the professor is an example of the:

Explanation:

The nominal scale measures variables to classify items which are divided into categories. It is a simple measurement scale where questions are divided into categories and choices are provided.

For example,

What is your gender?

In a nominal scale, the respondents only needs to choose between given choices in the questionnaire provided to them. Also, in nominal scale, numbers are used only as 'tags' to categorize objects and they do not have any value.

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