SOLUTION: The probability that a person passes organic chemistry the first time he enrolls is 0.8. The probability that a person passes organic chemistry the second time he enrolls is 0.9.

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Question 791199: The probability that a person passes organic chemistry the first time he enrolls is 0.8. The probability that a person passes organic chemistry the second time he enrolls is 0.9.
A)Find the probability that a person fails the first time but passes the second time.
B)Find the probability that a person fails both times.

Answer by oscargut(2103)   (Show Source): You can put this solution on YOUR website!
a) 0.2*0.9 = 0.18
b) 0.2*0.1 = 0.02
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