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Mathematics, 28.05.2020 03:00 drxppymami

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A bag contains 9 blue coins and 3 red coins. A coin is removed at random and replaced by three of the other color. Part 1 out of 3 What is the probability that the removed coin is blue? Enter your answer as a simplified fraction. The probability that the removed coin is blue is

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A bag contains 9 blue coins and 3 red coins. A coin is removed at...

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