Play & watch · probability
🎱 Galton Board
Drop balls through a triangle of pegs. Each peg sends a ball left or right at random — yet thousands of them pile up into the same smooth bell curve every time.
Tap the hopper at the top to drop a ball; hold it to pour. The dashed line is the theoretical bell curve (binomial). More rows = smoother curve; Bias skews it left or right. Chaos on each ball, order in the crowd.