# Definition:Variable/Descriptive Statistics

Jump to navigation
Jump to search

## Definition

A **variable** is a characteristic property of all individuals in a population or sample.

It is a categorization of the population such that each individual can be unambiguously described with respect to said variable.

### Quantitative Variable

A **quantitative variable** is a variable such that:

- The variable can be described by numbers
- The performing of arithmetical operations on the data is meaningful.

### Qualitative Variable

A **qualitative variable** is a variable such that:

- The variable is not a quantitative variable
- The variable describes each individual as either having, or not having, some specific property.

## Continuous Variable

A **continuous variable** is a variable which can take any value between two given values.

## Discrete Variable

A **discrete variable** is a variable which is not continuous.

## Sources

- 2011: Charles Henry Brase and Corrinne Pellillo Brase:
*Understandable Statistics*(10th ed.): $\S 1.1$