Mathematics, 27.06.2019 08:30 makinzy03

The time it takes a mechanic to change the oil in a car is exponentially distributed with a mean of 5 minutes. a. what is the probability that it will take a mechanic less than 6 minutes to change the oil? b. what is the probability that it will take a mechanic between 3 and 5 minutes to change the oil? c. what is the probability that it will take a mechanic exactly 5 minutes to change the oil? d. what is the probability that the mechanic will change the oils of two cars during 10 minutes? e. that is the probability that the mechanic will change the oils of four cars during 20 minutes?

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