Every year, millions of people invest their hard earned money in some sort of game of risk.  Whether it be gambling at a casino, playing the lottery, or even buying shares of  stock, why do people invest their money on chance?  Simply, joining a sporting event pool or meeting with friends on the weekend to play poker, people are usually quick to take the money that they earned and use it to bet on a game of chance.
      
         Have you ever wondered why someone on a television game show can act greedy and be willing to loose a large amount of money that they have already won to try to win some more?  People do it because they believe that they can beat the odds.  They BELIEVE that it is possible to win!

      Mathematical principles can tell us more than whether it is possible to win.  They can tell us how often we are likely to win.  The mathematical concept that deals with the chances of winning a lottery drawing or a poker game is probability.  If we can determine the probability that a certain event (such as winning a game) will occur, we can make a better choice about whether to risk the odds.

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