Some of these numbers include:17: This number is considered to be the most popular number in roulette, as it is believed to have brought luck to many players in the past. ... 7: Seven is often considered a lucky number in many cultures, and is therefore a popular choice for roulette players.If you want to know what is the probability that the coin will come up heads, then that would be: heads / (heads + tails) = 1/2 = . 5. Likewise when playing an even money bet at roulette, that option covers 18 of the 37 possible outcomes: 18/37=. 48648649.
