##  [Mutual Information](/mutual-information) 

  ##  [Mutual Information](https://natural.quantumdictionary.io/mutual-information-0) 

  

 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)



**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A nonnegative scalar that quantifies the amount of statistical dependence between two random variables by measuring how much knowing one reduces uncertainty about the other.