Understanding the House Edge and Variance at Online Casinos


When you play casino games, there’s a good chance that the casino will win. That’s because casinos are not charitable organizations – they have a business model to maximize their profit. This business model includes built-in advantages that ensure that the casino will always come out ahead. This edge is known as the house edge, and it increases the longer you play.

Common casino games

Many online casinos offer a wide variety of games, including video poker and slots machines. Playing casino games is a great way to try your luck at winning big bucks. However, it’s important to know how to play different games to get the most from your play. There are many different types of online casino games, and not all of them are created equal. Some of the most popular games include blackjack, roulette, and video poker.

Roulette is one of the oldest and most popular casino games. It is a game of chance that involves random numbers and a dealer. Some casinos also offer tournaments and poker games. As the most common type of casino game, roulette is both fun to play and easy to understand.

House edge

The house edge is the percentage that the casino takes on any given game. For example, the house edge in American roulette is 5.26%. This percentage is consistent across all casino games. However, the house edge varies depending on the game. The house edge in slot machines is higher than that in other casino games.

Luckily, there are ways to minimize the house edge. Bonuses and proper play can greatly reduce the house edge. Besides helping to reduce the house advantage, proper play will also help you control your bankroll and avoid developing bad gambling habits. The good news is that online casinos offer free chips and other types of rewards for playing.


Variance is an important concept to understand when it comes to casinos. It can help you manage your bankroll and be aware of potential downswings. In every session of play, there will be wins and losses. Some sessions will be flat, but others will yield big wins. By assessing variance, you can avoid the potential financial disasters that can come from losing your entire bankroll.

Variance in casinos is the difference between the expected win and loss rate of a game. This knowledge is extremely helpful when developing a strategy. For example, if you’re a beginner to roulette, you can learn the basics of the game by understanding the variance of the single-number roulette game.

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