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What Is a Casino?

A casino is an establishment for certain types of gambling. It may be combined with hotels, restaurants, retail shops, cruise ships or other tourist attractions. In the United States, casinos are most often found in cities with large populations of tourists. Many American Indian reservations have casinos, which are exempt from state antigambling laws. Some other states allow casinos to operate on riverboats or in certain locales.

Despite its seamy image, the casino industry is very profitable. It relies on a combination of luck and skill to generate winnings for players, who bet against the house. Casinos usually offer multiple games, including roulette, blackjack, poker, baccarat, and slot machines. Some casinos also feature sports betting and horse racing.

Because each game has a built-in advantage for the casino, it is very rare that a patron will win more than he or she wagers on a single session. In addition, casino employees closely monitor patrons for blatant cheating such as palming and marking cards or dice. Elaborate surveillance systems provide a high-tech eye-in-the-sky view of every table, window and doorway.

Casinos make money by collecting a percentage of all bets made on their games, which is known as the vig or rake. This amount can be lower than two percent for some games, but it adds up over millions of bets. In order to maximize profit, casinos attract big bettors by offering free spectacular entertainment, reduced-fare transportation and luxury living quarters.