# Gambling Math – How to Reduce the House Edge and Increase the Probability of Success at a Casino

The gambling business involves both good and bad math. A fair game with a positive house advantage minimizes the casino’s short-term risk and ensures its long-term profitability. On the other hand, a rigged game could give the player bad luck. While the fluctuations can be both good and bad, players still call them “luck.” The truth is that gambling is all about math. While there are a few exceptions, most casinos have rigged games to increase their short-term profit margins.

One common mistake made by casino professionals is failing to understand basic mathematics, which affects the profitability of the casino. I remember one casino owner who would test pit bosses and ask them how to win at blackjack. They would usually answer, “It’s the house’s advantage!” However, many managers could not identify this fact. Therefore, it is crucial to know why games give the casino its expected revenues. There are several ways to increase the likelihood of success at a casino.

One of the best ways to reduce the casino’s edge is to play smart. Casinos must know the house edge and the variance of the game to determine if it is profitable for them. Knowing these two numbers will give them a good idea of how much cash they have to invest. However, casinos rarely have in-house expertise in these areas, so they have to outsource this work to experts. There are many advantages and disadvantages to using these numbers.