Average Arrival Rate $($exponential interarrival times$)$

$3$ per hour

$5$ per hour

$53$:$11$

k

ces

Priority

High Low

Number of servers:

Service rate:

$5$

$2$ per hour $($exponential service times$)$

What is the average number of all items waiting in line for service?

Multiple Choice

$0\mathrm{.}24$

$1\mathrm{.}74$