Statistical Sciences 1024A/B Chapter Notes - Chapter 12: Associate Degree, Asteroid Family, Lactose Intolerance
1 Apr 2015
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12. 1: it is unlikely that these events are independent. In particular, it is reasonable to expect that younger adults are more likely than older adults to be college students. Note: using the notation of conditional probability introduced later in this chapter, p(college student | over 55) < 0. 08. P(n = 0) = (1 0. 096)9 = 0. 4032. B is the event the degree is a bachelor"s degree, and w is the event the degree was earned by a woman. the probability of the overlap is given. Subtracting this from the given probabilities for b and w gives the probabilities of the rest of those events. Those probabilities add to 0. 80, so p(neither b nor w) = 0. 20. (a) because p(w) = 0. 59, p(degree was earned by a man) = p(not w) = 1 0. 59 = 0. 41, or 41%. (b) p(b and not w) =
