Univariate

In mathematics, a univariate object is something like an expression, equation, function, or polynomial that uses only one variable. When we have more than one variable, we call it multivariate.

In statistics, a univariate distribution looks at just one variable. For example, univariate data has only one single value, like the height of students in a class. In time series analysis, a univariate time series shows how one quantity changes over time, such as the daily temperature in a city.

Univariate statistics use two main measures to describe data: location and variation. Measures of location tell us where the data is centered. Measures of variation show how spread out or similar the data values are.