Roulette is a casino game where the player bets on whether the number shown in the roulette wheel will be greater or less than the player’s chosen number. If the player gets 0 on roulette, then they win nothing. However, if the player gets their chosen number, they win whatever amount they bet.
There are 36 possible outcomes in roulette, with 0 being the most likely. This means that if you bet on black, there is a 1 in 36 chance you will get black. If you bet on green, there is a 1 in 36 chance you will get green.