SOLUTION: A box contains 10 discs: 5 yellow, 3 blue, 2 green. Two discs are selected without replacement. What is the probability that the first disc was blue given that the second disc was
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Question 746416: A box contains 10 discs: 5 yellow, 3 blue, 2 green. Two discs are selected without replacement. What is the probability that the first disc was blue given that the second disc was blue?
I keep getting the wrong answer and I don't understand why. Thank you!
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
First selection 3 blue/ 10 discs = 3/10
Second selection = 2 blue/ 9 discs = 2/9
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