Some online casinos get their payouts reviewed by, but how do we know if the auditors are honest?It's a different situation or roulette in both cases we can calculate the house edge because the rules are known.
But most of the time we don't have that information.
If you care enough to make the calculations (and you should), you'll know exactly how much you stand to lose or win in the long run.You could argue that casinos make so much money from slot machines that they have no reason to.