Unformatted text preview: 13. Let A and B be events in the sample space S . If P ( A ) = 0 . 45, P ( B ) = 0 . 7, and P ( A C ∩ B ) = 0 . 4, what is P ( A | B C )? 14. A pharmaceutical company is in the process of researching a pregnancy test. Among those women who are pregnant, the probability that the test is positive is 0 . 99. However, the probability that the test will erroneously indicate that the woman is pregnant is 0 . 02. It is estimated that 30% of the women in this study are actually pregnant. If the pregnancy test is positive, what is the probability that the woman is actually pregnant?...
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This note was uploaded on 03/04/2012 for the course MATH 141 taught by Professor Jillzarestky during the Fall '08 term at Texas A&M.
- Fall '08