Paper 1 · Research Aptitude
Which of the following includes examples of quantitative variables?
AAge, temperature, income and height
BGrade point average, anxiety level and reading performance
CGender, religion and ethnic group
DBoth the age-temperature set and the grade-anxiety set ✓ Correct
Correct answer: (D) Both the age-temperature set and the grade-anxiety set — Both the age-temperature set and the grade-anxiety set are quantitative variables, so the answer is both of them.
Explanation
★Both the age-temperature set and the grade-anxiety set are quantitative variables, so the answer is both of them.
★A quantitative variable is measured in numbers on a scale.
★Age, temperature, income and height are all measured as numbers, so that set is quantitative.
★Grade point average, anxiety level and reading performance are also measured numerically.
★Gender, religion and ethnic group are categories, so that set is not quantitative.
★Since both the first and the second sets are numerical, the answer covers both of them.
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