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Suppose that the amount of time you spend working on STAT 3600 homework follows an exponential...

Suppose that the amount of time you spend working on STAT 3600 homework follows an exponential distribution with mean 60 minutes. a. What is the probability that it takes you less than 50 minutes to complete the homework? b. Given that you have already spent 40 minutes on the homework and have not finished, what is the probability that you will spend at least 70 minutes on the homework?

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