Question 146423
A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour flight is .02. What is that 
(a) P(both will fail) = 0.02^2 0.0004
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(b) P(Neither will fail) = 0.08^2 = 0.0064
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(c) P(One or the other will fail) = 1-(0.0004+0.0064) = 0.9932
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Cheers,
Stan H.