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(Solved): 5. The time it takes a car mechanic to change oil has an exponential distribution with mean 20 minu ...




5. The time it takes a car mechanic to change oil has an exponential distribution with mean 20 minutes.
a) Find the probabili
5. The time it takes a car mechanic to change oil has an exponential distribution with mean 20 minutes. a) Find the probability that it takes the mechanic between 15 and 25 minutes to make an oil change. b) Find the percentile


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Let X = The time (in minutes) that it takes a mechanic to change oil.Given that: X?Exp(mean=20)
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