
Standard Deviation in Roulette: The Math Behind Swings
Standard deviation in roulette explains why you can play correctly and still lose everything in a Tuesday afternoon, and why luck and loss aversion are not the same thing.
The wheel is the oldest theatre in the casino, and after three centuries it still draws a crowd. Here we cover the math behind the spin, the strategies people swear by, and the players who tried to beat it.

Standard deviation in roulette explains why you can play correctly and still lose everything in a Tuesday afternoon, and why luck and loss aversion are not the same thing.

You know what I mean? The zero is sitting there on the wheel like a silent partner taking a cut. That is the house. Let me tell you how it really works.

GDPR grants European players data rights that American players do not have. A casino holding your betting data must disclose it to you. Few European players exercise this right.

RTP (Return to Player) is a number casinos publish that claims to show what percentage of wagered money is returned to players. For table games, this number is often misleading.

Some online slots now cap the maximum you can win in a single session. The psychology behind this cap tells us something revealing about how both casinos and players think about risk.

I see women come in saying red hasn't come up in 20 spins, so red must come next. It doesn't work that way, sweetheart. But telling them that doesn't help. So I just listen and let them learn.

Monaco's casino generates 5 million euros annually. In 1950, this was half the government budget. In 2020, it was 5%. This is the story of competition.

The short answer is that Monaco's rulers faced bankruptcy in the 1850s and invented casino tourism. The long answer, with figures, is more instructive.