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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. Flipism - Wikipedia

    en.wikipedia.org/wiki/Flipism

    Flipism, sometimes spelled "flippism", is a personal philosophy under which decisions are made by flipping a coin.It originally appeared in the Donald Duck Disney comic "Flip Decision" [1] [2] by Carl Barks, published in 1953.

  4. The Day the Music Died - Wikipedia

    en.wikipedia.org/wiki/The_Day_the_Music_Died

    The two agreed to toss a coin to decide. [11] Bob Hale, a disc jockey with Mason City's KRIB-AM, was emceeing the concert that night and flipped the coin in the ballroom's side-stage room shortly before the musicians departed for the airport. Valens won the coin toss for the seat on the flight.

  5. Coin flip - Wikipedia

    en.wikipedia.org/?title=Coin_flip&redirect=no

    This page was last edited on 27 July 2004, at 04:28 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...

  6. 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 one of each (known as "odds").

  7. NFL betting: The history of the Super Bowl coin toss - AOL

    www.aol.com/sports/nfl-betting-history-super...

    While a coin flip is a 50-50 chance, there are plenty of theories and thoughts about it. Some people think that one side of the coin is slightly heavier, which makes it more likely that side lands ...

  8. Gambler's fallacy - Wikipedia

    en.wikipedia.org/wiki/Gambler's_fallacy

    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 flips of a coin. All of the 21-flip combinations will have probabilities equal to 0.5 21, or 1 in 2,097,152. Assuming that a change ...

  9. Obverse and reverse - Wikipedia

    en.wikipedia.org/wiki/Obverse_and_reverse

    Roman imperial coin, struck c. 241, with the head of Tranquillina on the obverse, or front of the coin, and her marriage to Gordian III depicted on the reverse, or back side of the coin, in smaller scale; the coin exhibits the obverse – "head", or front – and reverse – "tail", or back – convention that still dominates much coinage today.