Online Roulette Priciples
According to roulette mathematics, every number is equally likely in a given spin. The most important thing for players to understand and learning poker with this is that previous spins have absolutely no effect on subsequent ones. The fact that a 30 hasn't come up for many spins does not mean that it is more likely to come up in the next one. On an American wheel, there is always a 1 in 38 chance of any number coming up. On a European wheel, the chances are 1 in 37 for every number.
Online roulette game has the same odds as live roulette and live card counting. The game is controlled by a random number generator (RNG) which provides even odds for each and every spin. If anything, online roulette is less biased for this reason because factors like the dealer's method of spinning or the weight of the wheel don't come in to play.
Understanding roulette mathematics can help players avoid inefficient strategies. Holding your bet on a single number for a long stretch of time does not make it more likely with every spin that your number will come up. You can effectively play with any strategy you prefer, but you should understand these basic principles.