Model Perspective
Sep 16, 2024 · Fundamentals
Why Identical Statistics Can Hide Very Different Data: The Lesson of Anscombe’s Quartet
Anscombe’s Quartet shows that four data sets can share identical means, variances, regression lines and correlation coefficients yet display completely different scatter‑plot shapes, highlighting why visualisation is crucial and why relying only on summary statistics can mislead analysts.
Anscombe's Quartetdata visualizationoutliers
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