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Interactive 3D/ANOVA Explorer
Add Points
ANOVA Table
F-statistic:17.139
p-value:< 0.001
SS between:12.945
SS within:4.532
η² effect:0.741
★ Groups are significantly different (p < 0.05)
Try: Drag Group B points far from A and C - watch F grow and p shrink. Move all groups together - p climbs above 0.05. η² tells you how much variance is explained by group membership.

ANOVA Explorer - Interactive Visualization

ANOVA tests whether means differ across groups by comparing between-group variance to within-group variance. The F-statistic = MS_between/MS_within. When groups are truly different, between-group variance dominates. This visualization shows 3 groups as dot plots, decomposes variance in real time, and updates the F-statistic and p-value as you drag points.

  • Drag points to see F-statistic and p-value update live
  • See between-group and within-group variance decomposition
  • Watch grand mean (dashed) and group means (solid) update
  • See η² effect size: proportion of variance explained by groups
  • Foundation for A/B testing, experimental design, and feature significance

Part of the EngineersOfAI Interactive 3D - free interactive visualizations covering every major concept in machine learning and AI engineering. Hover any element for a plain-English explanation. No code required.