Paper 1 · Research Aptitude
Which of the following can best be described as a categorical variable?
AAge
BAnnual income
CGrade point average
DReligion ✓ Correct
Correct answer: (D) Religion — Religion is best described as a categorical variable, so that is the answer.
Explanation
★Religion is best described as a categorical variable, so that is the answer.
★A categorical variable places cases into distinct categories that are not numerical.
★Religion sorts people into named groups such as Hindu, Muslim or Christian, which are categories.
★Age is a numerical quantity measured on a scale, not a category.
★Annual income is likewise a measured number, a quantitative variable.
★Grade point average is a numerical measure too, so only religion is a categorical variable.
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