operations research 2

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Cosider the following general queuing model 4 2 2 2 The steady-state probability associated with n=1 (p) is: Consider the following general queuing model 22 The balance equation of this system is: . o a. 2-Pn-1 = P. O b. 4.-P.-1 +2 -1 -1 = (a + #..)P.. O c. 2-1PA-1 + Hy-Pa = (+H.P o d. Ma-1PA-1 = U.P. An assembly line has three stations through which every unit being produced must pass in the same fixed order. The arrival of units follows a Poisson process for all stations. The mean time between arrivals is 8 minutes. The stations operate independently, and queues are allowed to form in front of each station. All stations have same mean processing time of 4 minutes. If processing time at each station has an exponential distribution The utilization rate of the second station is......%. Answer: Queuing systems are considered as a deterministid operations research models Select one True False