After carefully listing the outcomes of the Sample Space and the outcomes of the event, we can then calculate the probability the event occurs. Even taking this extra bonus into account, if a player m...After carefully listing the outcomes of the Sample Space and the outcomes of the event, we can then calculate the probability the event occurs. Even taking this extra bonus into account, if a player makes 36 $100 bets, the casino will expect to win $2000 (20 numbers x $100), and the player will expect to win $1900 (16 numbers x $100, plus $100 extra for the 2 and $200 extra for the 12), meaning the player loses $100 for every $3600 bet, a house (casino) advantage of 2.78%.