Gas station without pumps

2011 February 25

statpics: Galton’s Bayesian Machine

Filed under: Uncategorized — gasstationwithoutpumps @ 08:24
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Robert W. Jernigan of statpics has a great picture and explanation today of Galton’s Bayesian Machine.


This is a really cool demonstration of Bayesian stats, with prior distribution at the top, the likelihood function in the middle and the posterior distribution at the bottom. (Image touched up from

This machine starts with balls distributed according to a prior distribution at the top, then splits them front and back according to a likelihood function in the middle, then puts them back into uniform size bins to show the posterior distribution.

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