ashleyp94261 ashleyp94261
  • 25-11-2022
  • Mathematics
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The time T required to repair a machine is an exponentially distributed random variable with mean 10 hours.
a) What is the probability that a repair takes at least 15 hours given that its duration exceeds 12 hours? b) What is the probability that the combined time to repair two machines is at least 20 hours?

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