Mathematics, 28.11.2020 06:00 quintonps12

The time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with l=0.0003 a. What proportion of the fans will last at least 10,000 hours?
b. What proportion of the fans will last at most 7000 hours?

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The time to failure (in hours) of fans in a personal computer can be modeled by an exponential distr...