An airplane is built to be able to fly on one engine. If the plane's four engines operate independently, and each has a 1\% chance of failing in any given four-hour flight, what is the chance the plane will fail to complete a four-hour flight to its Pune due to engine failure? (4 marks)
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An airplane is built to be able to fly with an OH OHC engine. If the plane's two engines operate independently and each has a 1% chance of failing in any given four-hour flight, what is the chance the plane will fail to complete a four-hour flight to Oklahoma due to engine failure?
Donna D.
Joanna Q.
In a certain four-engine vintage aircraft, now quite unreliable, each engine has a 15% chance of failure on any flight, as long as it is carrying its one-fourth share of the load. But if one engine fails, then the chance of failure increases to 35% for each of the other three engines. And if a second engine fails, each of the remaining two has a 45% chance of failure. Assuming that no two engines ever fail simultaneously, and that the aircraft can continue flying with as few as two operating engines, find the probability of exactly one engine failure.
Aparna S.
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