---
tag: 051CYS71H5
kind: concept
name: Classical definition of probability
aliases: [classical-interpretation-of-probability, laplace-probability]
msc: [60A05]
sources:
  - url: https://en.wikipedia.org/wiki/Classical_definition_of_probability
    locator: lead section
same_as:
  wikidata: Q908596
  wikipedia: Classical definition of probability
---

## Summary

Suppose that all cases are equally likely.
Then the classical definition says that the probability of an event is the number of favourable cases divided by the number of all cases.
It goes back to Jacob Bernoulli and Pierre-Simon Laplace. The node [[classical definition of probability|0AKNPYQ04R]] gives the precise form.