Additional Activities
Distribution of Balls in a Quincunx
In this link, http://www.mathsisfun.com/data/quincunx.html, the webpage
will show a quincunx or "Galton Board" (named after Sir Francis Galton). This has a
triangular array of pegs wherein balls are dropped onto the top peg. Subsequently,
balls bounce their way down to the bottom where they are collected in little bins.
Each time a ball hits one of the pegs, it bounces either to the left or right with equal
probability. As a result, the number of pegs collecting in the bins form a bell-shaped
curve, especially as the number of rows (and bins) as well as the number of balls

increases.​