I. The Galton Board is a powerful visual demonstration of the Central Limit Theorem — showing how thousands of random choices can create a predictable bell curve. In this design by Philip Poissant, 6000 steel balls (and one gold bead) fall through 14 levels of pegs, each with a 50/50 chance of bouncing left or right. Over time, the balls accumulate in a pattern that mirrors the binomial distribution, forming a perfect bell curve. The math behind this process is tied to Pascal’s Triangle, where e

The Galton board, also known as the quincunx, is a classic probability experiment invented by Sir Francis Galton in the 19th century. It consists of a vertical board with rows of evenly spaced pegs arranged in a triangular pattern. Small balls are dropped from the top and, as they fall, they bounce randomly left or right when hitting each peg. Eventually, the balls collect in bins at the bottom. Though each path is random and unpredictable, the overall distribution of many balls forms a distinct