Statistics Concept

Std Dev & Variance

Drag the spread — see how far the points scatter from their mean.

mean −σ +σ
mean μ
5.0
std σ
1.95
variance σ²
3.80
points n
8
±σ band
[3.1, 6.9]
tip: try the “one outlier” preset — watch σ jump
spread.py