Re: Expected Value

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: : A doctor has scheduled 2 appointments, one at 1pm and the other at 1:30pm. The amt of time that appointments last are independent exponential random vbls w/mean 30min. Assuming that both patients are on time, find the expected amt of time that the 1:30pm spends at the doctor's office. : : im stuck : : let X = time 1pm appointment lasts : : so i would find P{X > 30} and P{X > 30} : : whut would be my next step? : DUNNO; but: : what did they tell Rip Van Winkle when he woke up? : (answer down the page) : . : . : . : . : . : . : . : . : . : . : . : . : . : . : . : . : . : . : "the doctor will see you know"!!

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