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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.

  3. Checking whether a coin is fair - Wikipedia

    en.wikipedia.org/wiki/Checking_whether_a_coin_is...

    The symbols H and T represent more generalised variables expressing the numbers of heads and tails respectively that might have been observed in the experiment. Thus N = H + T = h + t. Next, let r be the actual probability of obtaining heads in a single toss of the coin. This is the property of the coin which is being investigated.

  4. Heads or Tails (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Heads_or_Tails...

    Heads or Tails?, or Bomma Borusa, a 1971 Indian Telugu-language comedy film; Heads or Tails, or Testa o croce, or Heads I Win, Tails You Lose, an Italian comedy film; Heads or Tails, or Pismo - Glava, a 1983 drama film by Bahrudin Čengić; Heads or Tails, or Pile ou face, a Canadian film

  5. Quantum coin flipping - Wikipedia

    en.wikipedia.org/wiki/Quantum_coin_flipping

    Alice and Bob are recently divorced, living in two separate cities, and want to decide who gets to keep the car. To decide, Alice wants to flip a coin over the telephone. However, Bob is concerned that if he were to tell Alice heads, she would flip the coin and automatically tell him that he lost. [12]

  6. Heads and Tails - Wikipedia

    en.wikipedia.org/wiki/Heads_and_Tails

    Heads and Tails may refer to: Obverse and reverse, sides of a coin; Coin flipping; Heads and Tails (card game), a solitaire card game which uses two decks of playing cards. Heads and Tails (crowd game), touching ones head or tail; Heads and Tails, a 1995 Russian Film; Heads and Tails (Russian telecast), a Ukrainian Russian-speaking travel series

  7. Penney's game - Wikipedia

    en.wikipedia.org/wiki/Penney's_game

    Penney's game, named after its inventor Walter Penney, is a binary (head/tail) sequence generating game between two players. 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.

  8. Two-up - Wikipedia

    en.wikipedia.org/wiki/Two-up

    Spinner spins five odds in a row ("odding out") before either a pair of heads or a pair of tails. Spinner's Bet 3.400% 15–2 Only available to the current spinner. The spinner attempts to spin either three pair of heads or three pair of tails, and will win if they do so before either a) getting the opposite result or b) odding out. [3]

  9. Heads or Tails (1971 film) - Wikipedia

    en.wikipedia.org/wiki/Heads_or_Tails_(1971_film)

    Heads or Tails (French: Pile ou face) is a Canadian sex comedy film, directed by Roger Fournier and released in 1971. [1] The film centres on a group of friends who live in various places around the world and see each other once a year when they gather for a swingers weekend, but whose social equilibrium is upended when one of the circle cancels, sending in her place Stéphanie (Nathalie ...