# Bertrand's Box Paradox

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Consider three boxes. Box 1 contains two gold coins, box 2 contains two silver coins, and box 3 contains one gold and one silver coin. A box is chosen at random and then the coins in that box are chosen one at a time. Suppose that the first coin is gold. What is the probability that the second coin is also gold?

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Contributed by: D. Meliga and S. Z. Lavagnino (January 2017)

Additional contribution by: G. Follo

Open content licensed under CC BY-NC-SA

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Reference

[1] Wikipedia. "Bertrand's Box Paradox." (Jan 20, 2017) en.wikipedia.org/wiki/Bertrand's_box _paradox.

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"Bertrand's Box Paradox"

http://demonstrations.wolfram.com/BertrandsBoxParadox/

Wolfram Demonstrations Project

Published: January 23 2017