Ai Cheat Sheet

Search…

Statistics ↓↑

Probability ↓↑

Data Science ↓↑

Data Engineering ↓↑

Machine Learning ↓↑

Natural Language Processing ↓↑

Computer Vision ↓↑

Time Series

Reinforcement Learning

System Design

Interview Questions ↓↑

Contact

Powered By GitBook

Joint Probability

Joint probability is the probability of two events happening together.

The two events are usually designated event A and event B. In probability terminology, it can be written as:

$P(A \cap B) =P(A,B) = P(A|B)*P(B)$

Anyway, if an event A and B are idenpendent then

$P(A|B) = P(A)$

, and therefore, $P(A \cap B) = P(A,B)$

become $P(A) * P(B)$

2/52 = 1/26
(There are two black fives in a deck of 52 cards, the five of spades and the five of clubs).

OR Events

$P(A \cup B) = P(A)+P(B)-P(A \cap B)$

Last modified 9mo ago

Copy link

Contents

OR Events