Statistics · dispersion

Sample Variance Formula

Estimates variance from a sample using Bessel’s correction.

s² = Σ(xᵢ − x̄)² / (n − 1)

Variables

s²: sample variance
xᵢ: sample values
x̄: sample mean
n: sample size

Reference details

Subject: Statistics
Topic: dispersion
Plain text: s^2 = sum(x_i-x-bar)^2/(n-1)