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  2. Checking whether a coin is fair - Wikipedia

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

    The probability that this particular coin is a "fair coin" can then be obtained by integrating the PDF of the posterior distribution over the relevant interval that represents all the probabilities that can be counted as "fair" in a practical sense. Estimator of true probability (Frequentist approach). This method assumes that the experimenter ...

  3. A Guide Book of United States Coins - Wikipedia

    en.wikipedia.org/wiki/A_Guide_Book_of_United...

    Delayed until the end of World War II, the Red Book was published in 1946, providing collectors even more historical information as well as retail values (prices collectors could expect to pay coin dealers to buy coins) instead of wholesale values. R. S. Yeoman served as editor of the Red Book and Blue Book until he retired in 1970.

  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. What your old coins are worth now

    www.aol.com/news/2016-05-26-what-your-old-coins...

    Your old coins aren't the only items that could make you rich now -- Find out what your old baseball cards could be worth: Related Articles. AOL.

  6. US Presidential Dollar Coins Worth the Most Money — You Could ...

    www.aol.com/us-presidential-dollar-coins-worth...

    In the highest mint grade, this coin sells for around $141,000. 2007-S John Adams Proof: This coin has “zero flaws” and is expected to become rarer in the future, according to CoinValueLookup ...

  7. Are banks the best place to cash in your coins? - AOL

    www.aol.com/finance/banks-best-place-cash-coins...

    Most banks offer free coin exchange services to account holders, though you may need to roll coins yourself. Self-service coin-counting machines are more commonly found at local banks and credit ...