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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 black marble?
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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 black marble?
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Aug 23, 2017
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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 black marble?
Mathematics
high-school
Khaled Garbaya
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Khaled Garbaya
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5+6+4=15
blue marble = 6 out of 15
replacing blue marble for black = 4 out of 14
Algorithmitcus
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Aug 26, 2017
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Algorithmitcus
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P(blue) = 6/15
P(black) = 4/15
The required value of probability is 8/75.
Drew Marsh
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Aug 30, 2017
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Drew Marsh
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