When playing craps, two six-sided dice are thrown, creating 36 possible combinations. Each combination has equal probability of occurring (1 in 36, or approximately 2.78%). However, the sums created by these combinations vary in probability. A seven can be rolled in six different ways (1-6, 2-5, 3-4, 4-3, 5-2, 6-1), making it the most likely sum with a 16.67% probability. A two or twelve can only be rolled one way each, making them the least likely outcomes.
Understanding these probabilities is crucial for evaluating craps betting odds. The pass line bet, which wins on a seven or eleven on the come-out roll, has specific mathematical advantages and disadvantages depending on the point established. The don't pass bet offers different probability calculations, and experienced players study these numbers extensively to understand table dynamics.
Table etiquette in craps is equally important as understanding probability. Players must handle dice with one hand, throw with appropriate force to reach the back wall, and understand that the casino maintains specific rules about dice handling to ensure fair play. Respect for these procedures protects all players and maintains game integrity.
Betting odds at the craps table reflect the true probability of outcomes. The house edge varies significantly depending on which bets you make. Some bets, like taking or laying odds, are considered the best bets in craps because they pay true odds with minimal house advantage. Other bets carry substantially higher house edges, making them mathematically unfavorable over time.