# Probability Theory -- A Primer

DevFeed: [Probability Theory -- A Primer](<https://devfeed.tech/articles/probability-theory-a-primer-40298.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/2013/01/04/probability-theory-a-primer/>)

Published: 2013-01-04T13:45:54Z

Content type: tutorial

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [math](<https://devfeed.tech/topics/math.md>), [Statistics](<https://devfeed.tech/topics/statistics.md>), [Machine Learning & Artificial Intelligence](<https://devfeed.tech/topics/machine-learning-artificial-intelligence.md>)

Tags: [expectation](<https://devfeed.tech/tags/expectation.md>), [mathematics](<https://devfeed.tech/tags/mathematics.md>), [primer](<https://devfeed.tech/tags/primer.md>), [probabilistic](<https://devfeed.tech/tags/probabilistic.md>), [probability-theory](<https://devfeed.tech/tags/probability-theory.md>), [random-variables](<https://devfeed.tech/tags/random-variables.md>), [set-theory](<https://devfeed.tech/tags/set-theory.md>), [statistics](<https://devfeed.tech/tags/statistics.md>), [theory](<https://devfeed.tech/tags/theory.md>), [variables](<https://devfeed.tech/tags/variables.md>), [variance](<https://devfeed.tech/tags/variance.md>)

## AI overview

A primer on finite probability theory that introduces probability spaces, random variables, terminology, and basic results using naive set theory. It emphasizes mathematical formalism rather than real-world applications.

## Source excerpt

It is a wonder that we have yet to officially write about probability theory on this blog. Probability theory underlies a huge portion of artificial intelligence, machine learning, and statistics, and a number of our future posts will rely on the ideas and terminology we lay out in this post. Our first formal theory of machine learning will be deeply ingrained in probability theory, we will derive and analyze probabilistic learning algorithms, and our entire treatment of mathematical finance will be framed in terms of random variables.