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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. Heads and Tails (card game) - Wikipedia

    en.wikipedia.org/wiki/Heads_and_Tails_(card_game)

    Only the cards on the Heads and Tails rows are available to play on the foundations or on either the Heads or Tails row; the eight piles are used only to fill gaps. The cards on the Heads or Tails rows can be built either up or down by suit; building can change direction, but Aces cannot be built onto Kings and vice versa. When a gap occurs on ...

  4. Sleeping Beauty problem - Wikipedia

    en.wikipedia.org/wiki/Sleeping_Beauty_problem

    P(Tails and Tuesday) = P(Tails and Monday) = P(Heads and Monday). Since these three outcomes are exhaustive and exclusive for one trial (and thus their probabilities must add to 1), the probability of each is then 1/3 by the previous two steps in the argument.

  5. 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.

  6. 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.

  7. Heads or Tails (2005 film) - Wikipedia

    en.wikipedia.org/wiki/Heads_or_Tails_(2005_film)

    Heads or Tails is a dark drama: the story of a Native American myth and how it has been twisted throughout the years into something much darker. Every thirteen cycles of the moon, two people stand on a cliff and throw a coin off to compete for a wish. Only those that partake in the ritual see that the wish is only the beginning. [5]

  8. Matching pennies - Wikipedia

    en.wikipedia.org/wiki/Matching_pennies

    If one penny is heads and the other tails, Odd wins and keeps both coins. 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.

  9. 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