Seven come eleven  is a popular saying that can be heard at the dice table to attract luck. The meaning of this expression is simple  the first roll in each session is victorious when a player hits seven or eleven. Other popular sayings that are common among gamblers: Bet the farm.

The number 7 has been traditionally associated with good luck and fortune in many cultures, and this belief has carried over into slot machines. In many slot machine games, the number 7 is often used as a symbol of luck and is featured prominently on the reels.

It is theoretically possible to use machine learning and artificial intelligence to analyze patterns and predict outcomes in roulette. However, it's important to note that casinos employ various measures to prevent cheating and ensure the randomness of the game.

That's because roulette is a pure game of chance and the odds always favor the house (i.e., the casino), no matter which bet or combinations of bets you make, and regardless of what numbers have come up in the recent past. You will never, in the long run, overcome the house edge.