Question: 1. (10 marks) A computer service (e.g. web server) starts at time t=0. Jobs arrive at random in a Poisson fashion with parameter . Each

1. (10 marks) A computer service (e.g. web server) starts at

1. (10 marks) A computer service (e.g. web server) starts at time t=0. Jobs arrive at random in a Poisson fashion with parameter . Each job takes a constant c time units to finish the service. Calculate: (1) The probability P that the second job will not have to wait. (2) W, the average waiting time of the second job. Hint: xexdx=1xex21ex+C(C constant, =0)

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