3-171. Cabs pass your workplace according to a Poisson pro- cess with a mean of five cabs per hour. Suppose that you exit the workplace at 6:00 P.M. Determine the following: (a) Probability that you wait more than 10 minutes for a cab. (b) Probability that you wait fewer than 20 minutes for a cab. (c) Mean number of cabs per hour so that the probability that YOU wait more than 10 minutes is 0 1

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