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Flexible Galton Board

Each time a red ball hits a green nail, it can bounce left or right with a certain probability. This Demonstration shows how balls accumulate in the bins at the bottom, approximating a binomial distribution.

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The Galton board, also known as a quincunx or bean machine, is a device for statistical experiments named after English scientist Sir Francis Galton.

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"Flexible Galton Board" from the Wolfram Demonstrations Project
 http://demonstrations.wolfram.com/FlexibleGaltonBoard/
Contributed by: Michael Schreiber
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Common Core State Standards for Mathematics
 
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