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  2. Checking whether a coin is fair - Wikipedia

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

    This article describes experimental procedures for determining whether a coin is fair or unfair. There are many statistical methods for analyzing such an experimental procedure. This article illustrates two of them. Both methods prescribe an experiment (or trial) in which the coin is tossed many times and the result of each toss is recorded.

  3. United States Mint coin production - Wikipedia

    en.wikipedia.org/wiki/United_States_Mint_coin...

    This table represents the mintage figures of circulating coins produced by the United States Mint since 1887. This list does not include formerly-circulating gold coins, commemorative coins, or bullion coins. This list also does not include the three-cent nickel, which was largely winding down production by 1887 and has no modern equivalent.

  4. 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.

  5. Experts Explain How To Assess Whether Your Old Coins or Bills ...

    www.aol.com/experts-explain-assess-whether-old...

    Coin collecting, sometimes called numismatics, can be more than a hobby for some. It can be a money-making investment. The same goes for collecting, saving or reselling old paper money. Learn: 5 ...

  6. Gambler's fallacy - Wikipedia

    en.wikipedia.org/wiki/Gambler's_fallacy

    While a run of five heads has a probability of ⁠ 1 / 32 ⁠ = 0.03125 (a little over 3%), the misunderstanding lies in not realizing that this is the case only before the first coin is tossed. After the first four tosses in this example, the results are no longer unknown, so their probabilities are at that point equal to 1 (100%).

  7. What happens to the coins tossed into Rome's Trevi Fountain?

    www.aol.com/news/happens-coins-tossed-romes...

    In 2022 Caritas collected 1.4 million euros ($1.52 million) from the fountain and it expects to have gathered even more in 2023. Rome is one of the world's most visited cities with 21 million ...

  8. Coin flipping - Wikipedia

    en.wikipedia.org/wiki/Coin_flipping

    To choose two out of three, three coins are flipped, and if two coins come up the same and one different, the different one loses (is out), leaving two players. To choose one out of three, the previous is either reversed (the odd coin out is the winner) or a regular two-way coin flip between the two remaining players can decide. The three-way ...

  9. Shark attacks: US led the world in 2024. Where else does ...

    www.aol.com/feeding-frenzy-learn-where-sharks...

    2024 was an "exceptionally quiet year" for shark attacks. But the U.S. still led the globe - again. See where the fatal attacks happened.