5.62 A certain airplane has devil self-sustaining alternators to provide electrical power. The hazard that a given over alternator will run low on a 1-hour flight is .02. What is the hazard that (a) both will expose? (b) Neither will fail? (c) One or the other will fail? surface all steps carefully.
(a) P=0.0004 both will fail
(b) P=0.9604 neither will fail
(c) P=0.0392 either will fail
5.62 allow F foretell a failure and S denote a non-failure. Use the multiplicative rule of opportunity for independent events:
a. P(F1 ? F2) = P(F1)*P(F2) = .02*.02 = .0004.
b. P(S1 ? S2) = P(S1)*P(S2) = .98*.98 = .9604.
c. The sample space for all events is : F1F2, S1F2, F1S2, S1S2 There is only unmatched event that does not contain at least peerless failure, S1S2. The probability that wiz or the other will fail is 1- P(S1 ? S2) = 1- .9604 = .0396.
5.70 The probability is 1 in 4,000,000 that a single railroad car spark off in the United States will result in a fatality. Over a living, an average U.S. driver takes 50,000 trips. (a) What is the probability of a fatal accident over a lifetime? Explain your reasoning carefully. Hint: Assume independent events. wherefore might the assumption of independence be violated?
(b) why might a driver be tempted not to put on a seat belt just on this trip?
(a) P=0.0125 chance of a fatal accident; A driver drives 50000 times in a life time, one of 4000000 trips ends in a fatality, so of the 50000 trips what are the chances of an accident away of 4000000?
(b) The statistics that were gone over did not include seatbelt usage, but without that, statistically he would die anyway.
5.70a. P(fatal accident over a lifetime) = 1 ? P(no fatal accident over a lifetime) = 1 ? (3,999,999/4,000,000)50,000 = .012422.
b. The probability of an accident each time you get behind the roll out is so small that an individual might take the risk.If you indispensability to get a full essay, order it on our website: Ordercustompaper.com
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