Probability that driver to use seat belt just on trip

Reference no: EM1313705

Q1) The probability is 1 in 4,000,000 that single auto trip in United States will result in fatality. Over lifetime, an average U.S. driver takes 50,000 trips.

(a) Determine the probability of the fatal accident over a lifetime? Describe your reasoning carefully. Suppose independent events. Why might supposition of independence be violated?

(b) Why might driver be tempted not to use seat belt "just on this trip"?

Q2) A certain airplane has 2 independent alternators to give electrical power. Probability that a given alternator will fail on the 1-hour flight is .02. Determine the probability that:

(a) both will fail?

(b) Neither will fail?

Reference no: EM1313705

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