Probability Guess
Dice, coins, cards and marbles: what are the odds?
About Probability Guess
Work out simple probabilities with dice, coins, cards, spinners and bags of marbles, including the famous gambler's-fallacy trap.
How to play Probability Guess
- Pick the probability as a fraction.
- Choose a mode: Classic (10 timed questions), Speed run (60 seconds), Survival (three lives) or Daily (the same questions for everyone today).
- Tap an answer or press 1–4. Faster correct answers score more, and three in a row adds a streak bonus.
- Review every answer at the end, and share your daily result without spoilers.
Probability Guess FAQ
Is there a daily Probability Guess challenge?
Yes. Daily mode gives everyone the same questions each day, resetting at your local midnight, with a shareable result grid.
Is Probability Guess free to play?
Yes. Probability Guess is free in your browser on OFF PLAY, with nothing to download or install.
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