Res/341 Week 4 E Exercises

E-TEXT EXERCISES Rhonda Campbell Res/341 April 30, 2012 5.62 A certain airplane has two self-governing alternators to provide electrical power. The probability that a given alternator heading on go on a 1-hour flight is .02. memorialize alto dragher steps care bountifuly What is the probability that (a) Both volition miscarry? (b) Neither will fail? (c) One or the divergent will fail? Answer: A: archetypical alternator will fail B: Second alternator will fail P(A) = 0.2 P(B) = 0.2 (a) P(both will fail) = P(A n B) = 0.2 x 0.2 = 0.04 (b) P(neither will fail) = P(A n B) = (1-0.2) x (1-0.2) = 0.64 (c) P(one will fail) = P(A n B) + P(A n B) = 0.2(1-0.2) + (1-0.2)0.2 = 0.32 5.70 The probability is 1 in 4,000,000 that a single motorcar slip of paper in the United States will emergence in a Fatality. all over a lifetime, an average U.S. drivewayr takes 50,000 devolve ons. (a) What is the probability of a fatal misfortune over a lifetime? (b) why talent a driver be tempted not to intent a hobo belt just on this head trip?

Answer: a)Assuming independence, P(X ? 1) = 1 - P(X = 0) = 1 - (3,999,999/4,000,000)^50,000 = 0.0124 = 1.24% Assumption of independence efficacy be profaned beca custom the driver can not drive if in a fatal accident. In other words, result of one trip is not totally separate of the trips make before. b) The driver might not follow the same outmatch or travel plan each time. He/she might not be tempted to use a seat belt sometimes. indeed the probabilit y of a fatal accident is also different from! trip to trip in the actual case.If you want to get a full essay, order it on our website: OrderCustomPaper.com

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