The game of Keno originated in China over 800 years ago and was used as a means of financing the construction of the Great Wall.
It was brought to the United States by the Chinese railroad workers in the mid-180Os. The modern version using ping-pong-like balls to determine the winning numbers was developed in Nevada.
Keno is a game of pure luck. Except for knowing how to mark the tickets correctly, it requires no skill.
Its appeal is similar to the state lotteries: for a small investment" you have a chance of winning a very big payoff.
Although most players are aware of the high house edge, they are usually not aware of the astronomical odds against winning the top jackpots.
In each game of keno, twenty out of a total of eighty numbers are randomly selected, and the winning numbers are posted on keno fiashboards throughout the casino.
When you play the game, your goal is to correctly guess as many of those twenty numbers as possible.
The more numbers you get right, the bigger the payoff.
Keno payoffs vary from casino to casino, as does the house edge. in fact, within a single casino, the house edge varies with the type of game and with the total amount of numbers selected.
Thus, the only useful strategy is to find the lowest house edge and the best return for your money.