ASQ
CRE · Question #43
CRE Question #43: Real Exam Question with Answer & Explanation
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Question
An airline maintains a fleet of 4-engine aircraft. Its maintenance records show that on the average an engine fails 3 times in 10,000 operating hours with normal preventive maintenance. What is the Poisson distributed probability that 2 or more engines on an aircraft will fail during a typical flying period of 8 hours?
Options
- A0.000034
- B0.0000034
- C0.0000029
- D0.000029
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