# Probability distribution function

*34,200*pages on

this wiki

Depending upon which text is consulted, a **probability distribution function** is any of:

- a probability distribution function,
- a cumulative distribution function,
- a probability mass function, or
- a probability density function.

The similar term **probability function** may mean any of the above and, in addition,

- a probability measure function, as in a probability space, where the domain of the function is the set of events.