QUESTION $33$

$M{M}^2$ has a queuing problem where customers who line up to pay their selections form the waiting line. The $M{M}^2$ system consists of an arrival rate of $48$ per

hour according to a Poisson distribution, and service times are on average equal to $1$ minute per customer.

What is the average waiting time in the queue in minutes?

a$.7$

b$.0\mathrm{.}2$

c$.4$

d$.1\mathrm{.}2$

e$.5$