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  2. Odds - Wikipedia

    en.wikipedia.org/wiki/Odds

    Decimal odds are favoured by betting exchanges because they are the easiest to work with for trading, as they reflect the inverse of the probability of an outcome. [13] For example, a quoted odds of 5.00 equals to a probability of 1 / 5.00, that is 0.20 or 20%. Decimal odds are also known as European odds, digital odds or continental odds. [9]

  3. Mathematics of bookmaking - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_bookmaking

    Decimal odds are a single value, greater than 1, representing the amount to be paid out for each unit bet. For example, a bet of £40 at 6 − 4 (fractional odds) will pay out £40 + £60 = £100. The equivalent decimal odds are 2.5; £40 × 2.5 = £100. We can convert fractional to decimal odds by the formula D = (b + a) ⁄ b.

  4. Parimutuel betting - Wikipedia

    en.wikipedia.org/wiki/Parimutuel_betting

    The Canadian and American equivalent is the bet across (short for across the board): the bettor bets equal sums on the horse to win, place, and show. A parlay, accumulator or roll-up consists of a series of bets in which bettors stake the winnings from one race on the next in order until either the bettor loses or the series completes successfully.

  5. Gambling mathematics - Wikipedia

    en.wikipedia.org/wiki/Gambling_mathematics

    The mathematics of gambling is a collection of probability applications encountered in games of chance and can get included in game theory.From a mathematical point of view, the games of chance are experiments generating various types of aleatory events, and it is possible to calculate by using the properties of probability on a finite space of possibilities.

  6. Lottery mathematics - Wikipedia

    en.wikipedia.org/wiki/Lottery_mathematics

    Since ,, =,, the probability of obtaining the score of 2 and the bonus ball is , = = %, approximate decimal odds of 1 in 81.2. The general formula for B {\displaystyle B} matching balls in a N {\displaystyle N} choose K {\displaystyle K} lottery with one bonus ball from the N {\displaystyle N} pool of balls is:

  7. Math teacher beats the odds, wins $1M on 'Wheel of Fortune' - AOL

    www.aol.com/entertainment/math-teacher-beats...

    Well, this Maryland math teacher is and she's got $1 million to prove it. Sarah Manchester is only the third person ever to hit the $1 million Math teacher beats the odds, wins $1M on 'Wheel of ...

  8. Sports betting - Wikipedia

    en.wikipedia.org/wiki/Sports_betting

    Odds for different outcomes in single bet are presented either in European format (decimal odds), UK format (fractional odds), or American format (money line odds). European format (decimal odds) are used in continental Europe, Canada, and Australia. They are the ratio of the full payout to the stake, in a decimal format. Decimal odds of 2.00 ...

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