Answer to Question #149805 in Complex Analysis for Ellie

Question

3) An airplane has 2 engines. P(malfunction) = .0004 for a single engine on a single flight and these malfunctions are independent. A flight will crash if both engines malfunction on that flight. The plane makes 3 roundtrips per day [which is 6 flights]. Find:
[hint: numbers like 4.95E-5 should be written as .0000495]

e) How long can the plane be in service with a probability of any engine malfunction being less than 20%? [hint: find the number of engine uses then find how long]

f) P(first flight crashes) = [write as decimal without scientific notation]

g) P(first flight does not crash) =

h) P(at least one crash in first month) =

i) P(no crash in first 3 months) =

j) How long can the plane be in service with a probability of any crash being less than 2%?
[hint: find the number of flights then find how long]

Answer 1

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