Penney’s game

About this app

Coin sequences are non-transitive: for every three-flip sequence there is one that beats it on average. Pick sequences, watch the coin stream live, simulate 1000 games — win rates and mean waiting times (8 vs. 10 flips).

Subject: Data & decisions

More from Data & decisions

• Anchoring effect
• Benford's law
• Berkson's paradox
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• Cherry-picking: base period 2.0
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• The three-cowboy duel 2.0
• The three means

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