SOLUTION: A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour is 0.2. What is probability that (a) b
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Question 179949: A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour is 0.2. What is probability that (a) both will fail? (b) Neither will fail? (c ) One or the other will fail? Show all steps carefully. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour is 0.2. What is probability that
(a) P(both will fail) = 0.2^2 = 0.04
(b) P(Neither will fail) = (0.8)^2 = 0.16
(c) P(One or the other will fail) = 1 - [0.04+0.64] = 1 - 0.68 = 0.32
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Cheers,
Stan H.
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