SOLUTION: a bag contains 5 red and 20 blue marbles. what is the probability of picking out a red marble, keeping it out of the bag, and then picking another red marble?

Question 614618: a bag contains 5 red and 20 blue marbles. what is the probability of picking out a red marble, keeping it out of the bag, and then picking another red marble?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a bag contains 5 red and 20 blue marbles. what is the probability of picking out a red marble, keeping it out of the bag, and then picking another red marble?
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P(red | red) = (5/25)(4/24) = 20/(600) = 2/60 = 1/30
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Cheers,
Stan H.
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