Simpson's paradox

About this app

In every group the trend rises, lumped together it falls. A confounder reverses the aggregated relationship — group vs. overall regression switchable, an offset slider makes the paradox visible. Aggregation can deceive.

Subject: Statistics

More from Statistics

• Anscombe's quartet
• Bias-variance / overfitting
• Law of large numbers
• Hypothesis test & p-value
• Confidence interval
• Measures of location & spread
• Measures of location & spread 2.0
• Logistic regression

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