Question

Bob sets two alarm clocks (battery-powered) to be sure he arises for his Monday 8:00 A

Bob sets two alarm clocks (battery-powered) to be sure he arises for his Monday 8:00 A.M. accounting
exam. There is a 75 percent chance that either clock will wake Bob. (a) What is the probability
that Bob will oversleep? (b) If Bob had three clocks, would he have a 99 percent chance of
waking up?

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