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OFFPLAY

Probability Guess

Dice, coins, cards and marbles: what are the odds?

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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

  1. Pick the probability as a fraction.
  2. Choose a mode: Classic (10 timed questions), Speed run (60 seconds), Survival (three lives) or Daily (the same questions for everyone today).
  3. Tap an answer or press 1–4. Faster correct answers score more, and three in a row adds a streak bonus.
  4. 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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