Probability in roulette refers to the mathematical likelihood of specific outcomes occurring when spinning the roulette wheel. The game features two main variants: European roulette with 37 pockets （numbers 1-36 and a single zero） and American roulette with 38 pockets （numbers 1-36, plus zero and double zero）. 
The probability of winning a straight-up bet （wagering on a single number） is 1/37 in European roulette and 1/38 in American roulette. For even-money bets like red/black or odd/even, the probability is approximately 48.65% in European roulette and 47.37% in American roulette due to the presence of zero pockets.
Understanding probability helps players make informed decisions, although it\“s crucial to remember that each spin is independent, and the house always maintains an edge through the zero pockets. |
