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    janemorales's Avatar
    janemorales Posts: 26, Reputation: 1
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    #1

    Jul 20, 2008, 04:09 PM
    independent probability
    Did I do this right?

    5.62 – 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 the probability that (a) both will fail? (b) neither will fail? (c) one or the other will fail? Show all steps carefully.

    (a) – P(F) x P(F) = .02 x .02 = .0004 both will fail
    (b) – (1-P(F)) x (1-P(F)) = .98 x .98 = .9604 neither will fail
    (c) – 1 - .9604 = .0396 one will fail
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jul 20, 2008, 08:02 PM
    Well done jane!
    janemorales's Avatar
    janemorales Posts: 26, Reputation: 1
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    #3

    Jul 21, 2008, 05:36 AM
    Can this problem be answered using Excel? If so, how?
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