---
tag: 0VW9E4QXR6
kind: concept
name: Likelihood function
aliases: [likelihood]
msc: [62F10]
sources:
  - url: https://en.wikipedia.org/wiki/Likelihood_function
    locator: lead section
same_as:
  wikidata: Q45284
  wikipedia: Likelihood function
---

## Summary

The likelihood function gives, for each value of an unknown parameter, the probability or the density of the observed data under that value. It is a function of the parameter, with the data fixed.
The node [[likelihood function|05FSTXM92W]] gives the precise definition.