Univariate distribution

This is in contrast to a multivariate distribution, the probability distribution of a random vector (consisting of multiple random variables).

One of the simplest examples of a discrete univariate distribution is the discrete uniform distribution, where all elements of a finite set are equally likely.

The univariate continuous uniform distribution on an interval [a, b] has the property that all sub-intervals of the same length are equally likely.

Other examples of discrete univariate distributions include the binomial, geometric, negative binomial, and Poisson distributions.

[1] At least 750 univariate discrete distributions have been reported in the literature.