The laws that reign in the game of the Roulette are three, which are: “The Law of the Third”, “the Probability theory” and “the Law of the Great Numbers”.

• The law of the Third: It says that on a total of numbers possible to leave. A third will never leave, a third will leave a single time and a third will repeat approximately one or more times to cover to the absent numbers.

• Probability theory: The probability of a certain event is the relation that exists between the number of awaited events (also called “favorable”) and the total number of possible events; this law this included/understood by:

Calculation of Probabilities: The calculation of probabilities allows to know us beforehand whereupon frequency will leave a certain number in a certain amount of plays. It is obtained from a certain formula, that it consists of dividing the amount of favorable cases by the amount of possible cases.

Probability = favorable Cases/possible Cases.

Universe: Total number of possible cases is he. In European Roulette the Universe is of 37 and in the American it is of 38.

Mathematical hope: Product of the probability of an event by the “prize” or payment is he that is received in the case of occurring this event. This allows us to measure the convenience of taking part in a game or of making a certain bet, when there are several different games or bets. One imagines by means of the following formula.

Command post = p. “p” (mathematical hope = Probability x “prize”)

1. Law of the Great Numbers: In this law it is clarified that it is very certain that periods exist of you send that they do not leave certain numbers, but during periods of lengths, all the numbers saldran equal or near the equal amount of times.