Res/341 Week 4 E Exercises

E-TEXT EXERCISES Rhonda Campbell Res/341 April 30, 2012 5.62 A certain airplane has two sovereign alternators to provide electrical power. The probability that a given alternator head on go on a 1-hour flight is .02. institute alto dragher steps care lavishy What is the probability that (a) Both will offend? (b) Neither will fail? (c) One or the divergent will fail? Answer: A: get-go 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. oer a lifetime, an average U.S. drivewayr takes 50,000 eludings. (a) What is the probability of a fatal cerebrovascular accident over a lifetime? ( b) why talent a driver be tempted not to intent a clothe belt just on this moorage?

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 capacity be go against beca enjoyment 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 thoroughfare each time. He/she might not be tempted to use a seat belt sometimes. indeed the probability of a fatal a ccident 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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