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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. The party who calls the side that is facing up when the coin lands wins.

  3. Matching pennies - Wikipedia

    en.wikipedia.org/wiki/Matching_pennies

    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. If the pennies match (both heads or both tails), then Even wins and keeps both pennies.

  4. Heads and Tails (card game) - Wikipedia

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

    Rules. First, a row of eight cards are dealt; this is the "Heads" row. Then 8 piles of 11 cards are dealt; this is reserve. Below them is another row of eight cards, the "Tails" row. 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 ...

  5. St. Petersburg paradox - Wikipedia

    en.wikipedia.org/wiki/St._Petersburg_paradox

    St. Petersburg paradox. The St. Petersburg paradox or St. Petersburg lottery[1] is a paradox involving the game of flipping a coin where the expected payoff of the lottery game is infinite but nevertheless seems to be worth only a very small amount to the participants. The St. Petersburg paradox is a situation where a naïve decision criterion ...

  6. Penney's game - Wikipedia

    en.wikipedia.org/wiki/Penney's_game

    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. 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.

  8. Law of large numbers - Wikipedia

    en.wikipedia.org/wiki/Law_of_large_numbers

    In probability theory, the law of large numbers (LLN) is a mathematical law that states that the average of the results obtained from a large number of independent random samples converges to the true value, if it exists. [1] More formally, the LLN states that given a sample of independent and identically distributed values, the sample mean ...

  9. Heads and tails: Heavenly Dragon Lion Dance brings tradition ...

    www.aol.com/heads-tails-heavenly-dragon-lion...

    Then attached to the head is basically a long blanket, but it serves as a tail, or the body of the lion. Depending on the team or the troupe, they might wear uniform pants or lion pants.