Galton board

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Notion

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Science and technology

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What Wikipedia says

The Galton board, also known as the Galton box or quincunx or bean machine (or incorrectly Dalton board), is a device invented by Francis Galton to demonstrate the central limit theorem, in particular that with sufficient sample size the binomial distribution approximates a normal distribution.

Excerpt from the Wikipedia article “Galton board”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Exhibit made by Estes Objethos Atelier, photo by Rodrigo Tetsuo Argenton, CC BY-SA 4.0, via Wikimedia Commons.