A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a onehour flight is 0.067 . (a) What is the probability that both will fail? (Round your answer to 4 decimal places.) Answer is complete but not entirely correct. (b) What is the probability that neither will fail? (Round your answer to 4 decimal places.) Answer is complete but not entirely correct. (c) What is the probability that at least one fails? (Round your answer to 4 decimal places.) Answer is complete but not entirely correct