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  2. Coin flipping - Wikipedia

    en.wikipedia.org/wiki/Coin_flipping

    Coin flipping, coin tossing, or heads or tails is the practice of throwing a coin in the air and checking which side is showing when it lands, in order to randomly choose between two alternatives. It is a form of sortition which inherently has two possible outcomes. The party who calls the side that is facing up when the coin lands wins.

  3. Penney's game - Wikipedia

    en.wikipedia.org/wiki/Penney's_game

    Player A selects a sequence of heads and tails (of length 3 or larger), and shows this sequence to player B. Player B then selects another sequence of heads and tails of the same length. Subsequently, a fair coin is tossed until either player A's or player B's sequence appears as a consecutive subsequence of the coin toss outcomes. The player ...

  4. Two-up - Wikipedia

    en.wikipedia.org/wiki/Two-up

    Two-up is a traditional Australian gambling game, involving a designated "spinner" throwing two coins, usually Australian pennies, into the air. Players bet on whether the coins will both fall with heads (obverse) up, both with tails (reverse) up, or with a head and one a tail (known as "Ewan").

  5. Sleeping Beauty problem - Wikipedia

    en.wikipedia.org/wiki/Sleeping_Beauty_problem

    Sleeping Beauty problem. The Sleeping Beauty problem, also known as the Sleeping Beauty paradox, [1] is a puzzle in decision theory in which an ideally rational epistemic agent is told she will be awoken from sleep either once or twice according to the toss of a coin. Each time she will have no memory of whether she has been awoken before, and ...

  6. Gambler's fallacy - Wikipedia

    en.wikipedia.org/wiki/Gambler's_fallacy

    The probability of getting 20 heads then 1 tail, and the probability of getting 20 heads then another head are both 1 in 2,097,152. When flipping a fair coin 21 times, the outcome is equally likely to be 21 heads as 20 heads and then 1 tail. These two outcomes are equally as likely as any of the other combinations that can be obtained from 21 ...

  7. Matching pennies - Wikipedia

    en.wikipedia.org/wiki/Matching_pennies

    Matching pennies. Matching pennies is a non-cooperative game studied in game theory. It is played between two players, Even and Odd. Each player has a penny and must secretly turn the penny to heads or tails. The players then reveal their choices simultaneously. If the pennies match (both heads or both tails), then Even wins and keeps both pennies.

  8. Fair coin - Wikipedia

    en.wikipedia.org/wiki/Fair_coin

    In theoretical studies, the assumption that a coin is fair is often made by referring to an ideal coin. John Edmund Kerrich performed experiments in coin flipping and found that a coin made from a wooden disk about the size of a crown and coated on one side with lead landed heads (wooden side up) 679 times out of 1000.

  9. Phil Luckett - Wikipedia

    en.wikipedia.org/wiki/Phil_Luckett

    Now, instead of calling the toss while the coin is in the air, the team captain chooses heads or tails before the coin is flipped and the referee confirms the selection before he flips the coin. The following week Luckett and his crew were assigned to Giants Stadium for the game between the New York Jets and the Seattle Seahawks , a game with ...