Lifetime of a particular laptop is exponential random variable with average of 5 years. A company...

Lifetime of a particular laptop is exponential random variable with average of 5 years. A company orders 100 of such laptops. Find the probability that there are more than 20 laptops still in operation after 6 years from the date of purchase. (Hint: First compute the probability of one laptop still being in operation after 6 years. That will be the probability of ”success”. Then compute the probability that you’ve at least 20 out of 100 with that property.)

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orchestra answered 1 year ago

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