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Unformatted text preview: 59 Exercise 3.35 (Solution on p. 65.) United Blood Services is a blood bank that serves more than 500 hospitals in 18 states. Accord- ing to their website, http://www.unitedbloodservices.org/humanbloodtypes.html, a person with type O blood and a negative Rh factor (Rh- ) can donate blood to any person with any bloodtype. Their data show that 43% of people have type O blood and 15% of people have Rh- factor; 52% of people have type O or Rh- factor. a. Find the probability that a person has both type O blood and the Rh- factor b. Find the probability that a person does NOT have both type O blood and the Rh- factor. Exercise 3.36 (Solution on p. 65.) At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a research paper and a final exam. Let F be the event that a course has a final exam. Let R be the event that a course requires a research paper. a. Find the probability that a course has a final exam or a research project. b. Find the probability that a course has NEITHER of these two requirements. Exercise 3.37 (Solution on p. 65.) In a box of assorted cookies, 36% contain chocolate and 12% contain nuts. Of those, 8% contain both chocolate and nuts. Sean is allergic to both chocolate and nuts. a. Find the probability that a cookie contains chocolate or nuts (he can’t eat it). b. Find the probability that a cookie does not contain chocolate or nuts (he can eat it)....
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This document was uploaded on 10/31/2011 for the course STA 2023 at University of Florida.
- Fall '08