Quantitative variables deal with the numbers and which are calculative and measured.

Let the data that describe the annual salaries of NFL basketball player.

The variable is describing the annual salaries of NFL basketball player. As it describes the quantity or measurement of salaries not the quality. Therefore, the annual salaries of basketball player are quantitative variables.

Conclusion:

Thus, the annual salaries of basketball player are quantitative variables.

Let the data that describe the annual salaries of NFL basketball player.

The variable is describing the annual salaries of NFL basketball player. As it describes the quantity or measurement of salaries not the quality. Therefore, the annual salaries of basketball player are quantitative variables.

Conclusion:

Thus, the annual salaries of basketball player are quantitative variables.