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The principle of redundancy is used when system reliability is improved through redundant or backup components. Assume that a student's alarm clock has a 17.417.4 % daily failure rate. If the student has two such alarm clocks, what is the probability that they both fail on the morning of an important final exam?

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  1. 6 March, 02:07
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    Probability that both such alarms fail is 0.03027

    Step-by-step explanation:

    Probability the alarm fails = 0.174 (this is calculated by dividing the percentage by 100 like: 17.4/100)

    Probability that both such alarms fail = 0.174 * 0.174 = 0.03027
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