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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.
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.
The problem of them agreeing on a random bit by exchanging messages over this channel, without relying on any trusted third party, is called the coin flipping problem in cryptography. [1] Quantum coin flipping uses the principles of quantum mechanics to encrypt messages for secure communication.
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Random assignment or random placement is an experimental technique for assigning human participants or animal subjects to different groups in an experiment (e.g., a treatment group versus a control group) using randomization, such as by a chance procedure (e.g., flipping a coin) or a random number generator. [1]
The object of the game is to free one Ace and one King of each suit and build each of them by suit; the Aces are built up to Kings while the Kings are built down to Aces. 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.
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.
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