Quantitative Variables

Quantitative Variables

A quantitative variable is a variable that measures a numerical amount or quantity. Quantitative variables answer questions like “how much?” or “how many?”

Examples of Quantitative Variables

Variable

Example Values

Height

62 inches, 70 inches

Age

14 years, 18 years

Income

$25,000, $72,000

Number of siblings

0, 2, 5

Test score

78, 92

These variables use numbers to describe differences between observations.

Quantitative vs. Categorical Variables

Type of Variable

What It Describes

Quantitative Variable

How much or how many

Categorical Variable

Which group or category

For example:

  • Hours studied → quantitative

  • Favorite subject → categorical

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