Changes

Gambling is the act of wagering money (or other items of value) on the outcome of an event in order to win additional money.  This can include betting on games of chance, such as [[roulette]] and [[craps]], as well as games of skill, such as [[poker]], [[chess]], and [[mah jong]]. It also includes betting on sporting events, or on events such as election results. [[Lottery|Lotteries]] are a common form of gambling, with a small stake being bet for the very low probability of winning a very large amount of money, if the numbers a player chooses are selected by a random number picking device.

Gambling is the act of wagering money (or other items of value) on the outcome of an event in order to win additional money.  This can include betting on games of chance, such as [[roulette]] and [[craps]], as well as games of skill, such as [[poker]], [[chess]], and [[mah jong]]. It also includes betting on sporting events, or on events such as election results. [[Lottery|Lotteries]] are a common form of gambling, with a small stake being bet for the very low probability of winning a very large amount of money, if the numbers a player chooses are selected by a random number picking device. It is a potentially addictive activity, stimulating the Brain's pleasure center.

In games played against the "house" (for example, in a [[casino]]), typically the players will have an [[expected return]] of less than 100%. For example, in roulette, in the case of a 0 or 00 result, the money bet goes to the casino. In games against other players (such as poker), the expected return might be 100%, when the players are of equal skill levels (assuming the order of dealing is not important), or certain players might have greater (or lesser) expected returns, if they are better (or worse) players. If all the money stays with the players, then the overall expected return is 100%. If the "house" takes a rake of the money bet, the overall expected return will be less than 100%.  

In games played against the "house" (for example, in a [[casino]]), typically the players will have an [[expected return]] of less than 100%. For example, in roulette, in the case of a 0 or 00 result, the money bet goes to the casino. In games against other players (such as poker), the expected return might be 100%, when the players are of equal skill levels (assuming the order of dealing is not important), or certain players might have greater (or lesser) expected returns, if they are better (or worse) players. If all the money stays with the players, then the overall expected return is 100%. If the "house" takes a rake of the money bet, the overall expected return will be less than 100%.