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A bag contains 4 red marbles and 6 blue marbles. Brandon selects one marble from the bag. Without replacing the marble he then selects a second marble. What is the probability t…
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A bag contains 4 red marbles and 6 blue marbles. Brandon selects one marble from the bag. Without replacing the marble he then selects a second marble. What is the probability t…
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Oct 23, 2017
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A bag contains 4 red marbles and 6 blue marbles. Brandon selects one marble from the bag. Without replacing the marble he then selects a second marble. What is the probability that he first selects a blue marble and then selects a red marble?
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4 red marbles and 6 blue marbles...total of 10 marbles
probability of first marble being blue = 6/10
without replacing
probability of second marble being red = 4/9
probability of both events happening = 6/10 * 4/9 = 24/90 reduces to 4/15
Manuel Bitto
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Oct 28, 2017
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