# Correlation

> Source: https://sukruyusufkaya.com/en/glossary/korelasyon
> Updated: 2026-05-13T21:01:08.817Z
> Type: glossary
> Category: matematik-istatistik-optimizasyon
**TLDR:** A standardized measure of the direction and strength of the linear relationship between two variables.

<p>Correlation is a core measure used to understand how strong a relationship is between two variables and in which direction it operates. Like covariance, it examines joint variation, but because it is standardized, it is easier to interpret. Positive correlation indicates that variables tend to increase together, while negative correlation reflects an inverse relationship. However, correlation does not imply causation. In data analysis and feature selection, it is extremely useful, but it should always be interpreted together with context.</p>