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Omni-MATH / Amina and Bert alternate turns tossing a fair coin. Amina goes first and each…

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problem

Amina and Bert alternate turns tossing a fair coin. Amina goes first and each player takes three turns. The first player to toss a tail wins. If neither Amina nor Bert tosses a tail, then neither wins. What is the probability that Amina wins?

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