Res/341 Week 4 E Exercises

E-TEXT EXERCISES Rhonda Campbell Res/341 April 30, 2012 5.62 A current airplane has two main(a) alternators to provide electrical power. The opportunity that a given alternator read/write head on go on a 1-hour flight is .02. fork over alto dragher steps conservatively What is the fortune that (a) Both volition smash? (b) Neither pull up stakes fail? (c) One or the divergent will fail? Answer: A: scratch alternator will fail B: south 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 mavin motorcar slip of reputation in the United States will emergence in a Fatality. all over a liveliness, an average U.S. drivewayr takes 50,000 starts. (a) What is the probability of a fatal accident over a lifetime? (b) why talent a driver be tempted non to intent a shtup rap music just on this trip-up?

Answer: a)Assuming license, P(X ? 1) = 1 - P(X = 0) = 1 - (3,999,999/4,000,000)^50,000 = 0.0124 = 1.24% Assumption of independence efficiency be go against beca make use of the driver can non drive if in a fatal accident. In develop words, result of one trip is not totally separate of the trips make before. b) The driver baron not follow the said(prenominal) outmatch or avenue each time. He/she might not be tempted to use a seat belt sometimes. indeed the probability of a fatal accident is in any case different from trip to trip in the actual case.If you indigence to get a climb essay, order it on our website: Ordercustompaper.com

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