Which of the following includes examples of quantitative variables?

Both the age-temperature set and the grade-anxiety set consist entirely of quantitative variables.

Age, temperature, income and height are all measured as numerical amounts.

Grade point average, anxiety level and reading performance are likewise expressed as scores.

Gender, religion and ethnic group are categorical, so that set is not quantitative.

Selecting only one numeric set overlooks that the other set is equally quantitative.

Quantitative variables may be discrete counts or continuous measurements.