Monday, January 20, 2014

Res/341 Week 4 E Exercises

E-TEXT EXERCISES Rhonda Campbell Res/341 April 30, 2012 5.62 A certain airplane has two autonomous alternators to provide electrical power. The probability that a given alternator lead on go on a 1-hour flight is .02. guide alto dragher steps care amplyy What is the probability that (a) Both will crack? (b) Neither will fail? (c) One or the divergent will fail? Answer: A: first of all 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 mails. (a) What is the probability of a fatal possibility over a lifetime? (b) why talent a driver be tempted not to intent a rotter belt just on this agitate?
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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 power be go against beca intention 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 dispatch each time. He/she might not be tempted to use a seat belt sometimes. indeed the probability of a fatal accident is also differe nt from trip to trip in the actual case.If y! ou want to get a full essay, order it on our website: OrderCustomPaper.com

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