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There are black and blue marbles in a bag. The probability of choosing a blue marble is 0.31. The probability of choosing a blue marble

There are black and blue marbles in a bag. The probability of choosing a blue marble is 0.31. The probability of choosing a blue marble first and then a black marble is 0.12. What is the probability to the nearest hundredth of the second marble being black if the first marble chosen is blue

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