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Mathematics, 13.12.2021 23:10 bear7823

Beatrice has two coins. The first coin is fair and the second coin is biased. The biased coin comes up heads with probability 2/3 and tails with probability 1/3. Beatrice selects one of the two coins at random and flips the selected coin 4 times. The result is HHTH. What is the probability that the fair coin was selected?

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Beatrice has two coins. The first coin is fair and the second coin is biased. The biased coin comes...

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