Question: n a system with 4 servers and a single queue, jobs arrive at a rate of 8 per hour following a Poisson distribution. Service rate

n a system with 4 servers and a single queue, jobs arrive at a rate of 8 per hour following a Poisson distribution. Service rate is 3 jobs per hour. If the probability that the system is empty is 10%, what is the average number of jobs waiting to be processed?
a) around 12 jobs
b) around 8 jobs
c) around 5 jobs
d) around 14 jobs
e)1.25
n a system with 4 servers and a single queue, jobs

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