An example of a categorical variable is

AA teacher's hair colour ✓ Correct

BThe average time a teacher takes to grade an essay

CThe distance a teacher travels from office to class

DThe time a sportsperson takes to complete a lap

Correct answer: (A) A teacher's hair colour

Explanation

A teacher's hair colour is a categorical variable, sorting people into named colour groups.

Categorical values name a quality and carry no numerical magnitude.

The average time a teacher takes to grade an essay is a measured quantity and thus quantitative.

The distance a teacher travels from office to class is quantitative, expressed in units of length.

The time a sportsperson takes to complete a lap is quantitative, measured in seconds.

Categorical variables suit frequency counts and the mode rather than an arithmetic mean.

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