---
title: "Variance mathematical notation"
description: "Variance is a recurring research-paper notation family. Measures the expected squared distance of a random variable from its mean."
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/variance"
md_url: "https://fanout.sh/labs/math-decoder/symbol/variance.md"
last_updated: "2026-08-09"
access: "public"
---

# Variance mathematical notation

Variance is a recurring research-paper notation family. Measures the expected squared distance of a random variable from its mean.

## Public overview

Variance: Measures the expected squared distance of a random variable from its mean. Example: Average the squared deviations from the mean.

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