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INTERACTIVE PROBABILITY LESSON
Bayesian Evidence Playground
Learn Bayes theorem visually with a natural-frequency grid, posterior wheel, tree path, formula bridge, CSV export, Markdown brief, SVG and JSON receipt.
Reviewed 2026-06-27
EducationPopulation gridPosterior wheelBayes formulaFrequency CSVJSON receipt
WHY IT IS DIFFERENT
It makes Bayes theorem visible as people, not symbols.
The population grid, posterior wheel and tree path show where true positives and false positives come from, then export a proof receipt for the exact scenario.