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📜 SIDE QUEST · DEEP DIVE · ◆◆ · ~9 min

Anscombe's Quartet: Always Plot

Anscombe's Quartet: Always Plot

"Four datasets with the same mean, variance, correlation, and regression line — and four completely different stories. A deep dive on why summary statistics can lie."

identical summary statistics, different datathe necessity of plottingoutliers, leverage, and nonlinearityresidual diagnostics
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