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Posted: **Wed May 11, 2022 6:21 am**

: 6 Suppose That The Length Of A Phone Call In Minutes Is An Exponential Random Variable With Average Length 10 Minutes 1 (12.97 KiB) Viewed 40 times

(6) Suppose that the length of a phone call in minutes is an exponential random variable with average length 10 minutes. (a) What is the probability of your phone call being more than 10 min- utes? (Answer: -10.368) (b) Between 10 and 20 minutes? (Answer: e-!-(-0.233)