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  2. Coin flipping - Wikipedia

    en.wikipedia.org/wiki/Coin_flipping

    Tossing a coin. 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 ...

  3. Fair coin - Wikipedia

    en.wikipedia.org/wiki/Fair_coin

    A fair coin, when tossed, should have an equal chance of landing either side up. In probability theory and statistics, a sequence of independent Bernoulli trials with probability 1/2 of success on each trial is metaphorically called a fair coin. One for which the probability is not 1/2 is called a biased or unfair coin.

  4. Two-up - Wikipedia

    en.wikipedia.org/wiki/Two-up

    Odds or "One Them" One coin lands with the "head" side up, and the other lands with the "tails" side up. (Probability 50%) Odding Out To spin five "odds" in a row. (Probability 3.125%) Come in, Spinner The call given by the boxer when all bets are placed and the coins are now ready to be tossed. "Barred"

  5. Glossary of numismatics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_numismatics

    A coin struck with the design on one side only. union A proposed United States gold coin worth $100 (one hundred dollars). Only one pattern "half union" is known to exist. Platinum $100 coins are not technically "unions". unique An item of which only one is known to exist. [1] upset A coin struck on which the obverse and reverse are out of ...

  6. 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 ...

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  8. Checking whether a coin is fair - Wikipedia

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

    Initially, the true probability of obtaining a particular side when a coin is tossed is unknown, but the uncertainty is represented by the "prior distribution". The theory of Bayesian inference is used to derive the posterior distribution by combining the prior distribution and the likelihood function which represents the information obtained ...

  9. College Football Playoff first-round schedule, betting odds ...

    www.aol.com/sports/college-football-playoff...

    The Longhorns are the No. 5 seed and will host Clemson in the first round on Dec. 21. Texas is +375 to win the title ahead of Ohio State at +450. The Buckeyes are the No. 8 seed and host No. 9 ...