8. Starting at time 0, customers arrive at a service counter in accordance with a Poisson process of rate A (customers per hour). Assume that each customer requires exactly 1 hour of service, and that the number of servers is unlimited. Fix t > 1. (a) Find the probability that there are no customers being served at time t. (b) Find the expected number of customers being served at time t.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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8. Starting at time 0, customers arrive at a service counter in accordance with a Poisson process
of rate A (customers per hour). Assume that each customer requires exactly 1 hour of service, and
that the number of servers is unlimited. Fix t > 1.
(a) Find the probability that there are no customers being served at time t.
(b) Find the expected number of customers being served at time t.
Transcribed Image Text:8. Starting at time 0, customers arrive at a service counter in accordance with a Poisson process of rate A (customers per hour). Assume that each customer requires exactly 1 hour of service, and that the number of servers is unlimited. Fix t > 1. (a) Find the probability that there are no customers being served at time t. (b) Find the expected number of customers being served at time t.
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