SOLUTION: A box contains 4 red marbles and 3 blue marbles. 2 marbles are drawn at random without replacement. What is the probability that the second marble drawn is blue given that:
(a) th
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Question 710403: A box contains 4 red marbles and 3 blue marbles. 2 marbles are drawn at random without replacement. What is the probability that the second marble drawn is blue given that:
(a) the first marble drawn is red
(b) the first marble drawn is blue
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A box contains 4 red marbles and 3 blue marbles. 2 marbles are drawn at random without replacement. What is the probability that the second marble drawn is blue given that:
(a) the first marble drawn is red
P(blue | red) = 3/(3+3) = 1/2
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(b) the first marble drawn is blue
P(blue | blue) = 2/6 = 1/3
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Cheers,
Stan H.
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