Drivers who come to get their licenses at the department ofmotor vehicles have their photograph taken by an automatedmachine that develops the photograph onto the license cardand laminates the complete license. The machine requires aconstant time of 4.5 minutes to develop a completed license.If drivers arrive at the machine at the mean rate of 11 perhour (Poisson distributed), determine the average length ofthe waiting line and the average waiting time.

Question

Drivers who come to get their licenses at the department of
motor vehicles have their photograph taken by an automated
machine that develops the photograph onto the license card
and laminates the complete license. The machine requires a
constant time of 4.5 minutes to develop a completed license.
If drivers arrive at the machine at the mean rate of 11 per
hour (Poisson distributed), determine the average length of
the waiting line and the average waiting time.

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