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OpenStudy (anonymous):
A bag has five red marbles, six blue marbles, and four black marbles. What is the probability of picking a blue marble, replacing it, and then picking a red marble?
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OpenStudy (anonymous):
6 of the 15 marbles are blue then we put it back then 5 of the 15 marbles are red so 6/15 x 5/15
OpenStudy (anonymous):
if we did not put it back the second fraction would be 5/14 rather than 5/15
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