freeCodeCamp/guide/english/mathematics/correlation/index.md

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2018-10-12 19:37:13 +00:00
---
title: Correlation
---
## Correlation
The correlation means how much one thing changes with another.
If there is a positive correlation between A and B, then as A increases, B increases.
If there is a negative correlation, then as A increases, B decreases (or the other way around).
If there is no correlation, then A does not affect B and vice versa.
![Correlations](http://www.statisticshowto.com/wp-content/uploads/2012/10/pearson-2-small.png)