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  2. Labouchère system - Wikipedia

    en.wikipedia.org/wiki/Labouchère_system

    The Labouchère System is meant to be applied to even money Roulette propositions such as Even/Odd, Red/Black or 1–18/19–36. When any of these bets are made in the game of Roulette, a spin resulting in a "0" or "00" results in a loss, so even though the payout is even money, the odds are clearly not 50/50.

  3. Parimutuel betting - Wikipedia

    en.wikipedia.org/wiki/Parimutuel_betting

    This leaves a remaining amount of $881.51. This remaining amount in the pool is now distributed to those who wagered on Outcome 4: $881.51 / $110.00 = 8.01 ≈ $8 payout per $1 wagered. This payout includes the $1 wagered plus an additional $7 profit. Thus, the odds on Outcome 4 are 7-to-1 (or, expressed as decimal odds, 8.01).

  4. Roulette - Wikipedia

    en.wikipedia.org/wiki/Roulette

    The payout given by the casino for a win is based on the roulette wheel having 36 outcomes, and the payout for a bet is given by . For example, betting on 1-12 there are 12 numbers that define a win, p = 12 {\displaystyle p=12} , the payout is 36 12 = 3 {\textstyle {\frac {36}{12}}=3} , so the bettor wins 3 times their bet.

  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. Mathematics of bookmaking - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_bookmaking

    Returns (£20 single at 15-8 ATC £20 single at 7-2) = £20 × 15/8 + £20 × (7/2 + 1) = £127.50 Total returns = £255.00 Note: This is the same as two £20 single bets at twice the odds; i.e. £20 singles at 7-1 and 15-4 and is the preferred manual way of calculating the bet.

  7. Vigorish - Wikipedia

    en.wikipedia.org/wiki/Vigorish

    Under proportional vigorish, a "fair odds" betting line of 2.00/2.00 [b] without vigorish would decrease the payouts of all outcomes equally, perhaps to 1.95/1.95, once it was added. More commonly though, disproportional vigorish will be applied as part of the efforts to keep the amounts wagered balanced, such as 1. 90 /2.00, making the outcome ...

  8. Slot machine - Wikipedia

    en.wikipedia.org/wiki/Slot_machine

    [20] Roll-up is the process of dramatizing a win by playing sounds while the meters count up to the amount that has been won. Short pay refers to a partial payout made by a slot machine, which is less than the amount due to the player. This occurs if the coin hopper has been depleted as a result of making earlier payouts to players.

  9. Gambling - Wikipedia

    en.wikipedia.org/wiki/Gambling

    Gamblers will prefer gambles with worse odds that are drawn from a large sample (e.g., drawing one red ball from an urn containing 89 red balls and 11 blue balls) to better odds that are drawn from a small sample (drawing one red ball from an urn containing 9 red balls and one blue ball). [71] Gambler's fallacy/positive recency bias.