Recitation6 - Rensselaer Electrical, Computer, and Systems...

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Rensselaer Electrical, Computer, and Systems Engineering Department ECSE 4500 Probability for Engineering Applications Recitation 6 Wednesday March 3, 2010 Waiting time at a restaurant A certain restaurant has been found to have the following joint distribution for the waiting time for service for a newly arriving customer and the total number of customers including the new arrival. Let W be a random variable representing the continuous waiting time for a newly arriving customer, and let N be a discrete random variable representing the total number of customers. The joint distribution function is then given as, F W,N ( w,n )= 0 ,n < 0 or w< 0 , (1 exp w/μ 0 ) n 10 , 0 n 5 ,w 0 , (1 exp w/μ 0 ) 5 10 +(1 exp w/μ 1 ) ¡ n 5 10 ¢ , 5 <n< 10 0 , (1 exp w/μ 0 ) 5 10 exp w/μ 1 ) ¡ 5 10 ¢ , 10 n, w 0 , where the parameters μ i satisfy 0 0 1 . Note that this choice of the parameters means that waiting times are longer when the number of customers is large.
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This note was uploaded on 04/15/2010 for the course ECSE 4500 taught by Professor Woods during the Spring '08 term at Rensselaer Polytechnic Institute.

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