some of you people should really read what you post here. Casinos are a business. They are in the business of gaming, but their business is to make money off of gaming. all these long ridiculous posts about how the casinos are cheating using bad dice and why so many sevens, and so on and so on........what a crock of shit. Ill explain to whomever needs an explanation. Ill make it as simple as possible. Everything a casino does is deliberate. Casinos leave nothing to chance unless that itself is designed into a game to make them money. This is called the house edge, advantage, house take, whatever you want to call it. everything is done on purpose. from the price of a cup of coffee, to the craps tables. Nothing is left to chance. if a casino unknowingly or knowingly uses bad dice, it will only hurt them. Period. as soon as a few players notice a 7 every 3 rolls, or every 4 rolls, remember it has to be noticeable, and if any game of chance has any noticeable deviations from what the casino depends on, ITS DETRIMENTAL TO THE CASINOS TAKE!!!!!!! first 3 people notice it, then 6, then soon 500, and the casino will lose money. They depend on the, absolutely 100% on the randomness of dice rolls, because the game is designed around that randomness to generate a certain percentage of money for the house. if by any way or form the randomness of dice are changed, the casino loses its edge. And that cannot be tolerated by casinos. biased dice wont cut it, they will pull the bad dice. Im sure bad dice are made, but the casino WILL notice it, and pull them fast. A reason they change out dice, Yes Harley, I don't know when, don't care, change out those dice because once they can become biased after a lot of use, they no longer can count on that randomness that MAKES THEM MONEY!!!! its so simple......people just want to dazzle us with long posts and mathematical nonsense......yes, bias dice probably are in use here and there, but casinos will pull them as soon as they figure it out....because perfectly balanced good dice favor them more than dice that can become predictable. Slot machines depend on predictability. They have to be set. Dice tables depend on total randomness because the game is designed to favor the casino with perfect randomness. too many 7s will kill a casinos profit. its really simple.