Roulette Systems
Roulette systems are methods by which one attempts to play the game of roulette in a manner such that they are unable to lose. The most commonly accepted theory on effective roulette systems is that they simply don't exist. The mathematics of the game of roulette is dead simple. You can bet on a single number, or choose a predefined group of associated numbers to bet on. The payout is 35 to 1, regardless of the fact that the odds overcome to achieve that payout are 37 to 1 in American roulette. This difference creates what is known as a house edge, or a casino advantage. If you were to bet a single dollar on every one of the 38 available numbers, you would only win 35 dollars back.
Roulette systems purport to decrease this house edge and turn it into a players edge, so that the player wins in the long run, instead of the house. This, as you may well be aware, is not how casinos are put together. Every game in the casino has a mathematical house edge, and roulette is no exception. Those who try to sell roulette systems that have beaten the math of roulette are either scam artists, or simply don't understand math very well.
Every bet on the roulette table has an identical house edge, remember the formula for calculating an expectancy (or an advantage) :
Expectancy = [odds of winning X money won] + [odds of losing X money lost]
Think of a simple $1 bet on the roulette table, on and individual number. The chance of hitting that number on an American roulette wheel is 1 in 38, which could be expressed as 37 to 1 odds. But if you were to win that bet, you would only be paid 35 to 1. When really, you deserve to be paid at 37 to 1, if it were a fair bet. Of course, casinos don't offer fair bets.
For example of calculating expectancy, let's run through the single dollar bet example from above.
Expectancy = [1/38 X 35] + [37/38 X -1]
= [0.921] + [-0.9736]
= -0.526
A 5.26% negative expectation, which is the same as saying a 5.26% house edge.
In fact, every bet and combination of bets on the American roulette table has
a 5.26% house edge, which is inescapable. These are simply the odds you choose
to play against if you enjoy betting on roulette. System sellers could not possibly
show you the above equation returning a positive number, no matter what their
'magic' combination of bets may be.
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