CU Denver requires faculty and staff to check in each day when on campus to ensure they are healthy. Each person must present their completed health survey certificate at a check

$-$

in desk and they then receive a color

$-$

coded wristband that allows them to be on campus for that day only. Between

$8$

AM and

$1$

$0$

AM

$,$

$$the average arrival rate to the check

$-$

in desk at the business school building is

$3$

$0$

$$people

$/$

hour

$.$

$$It takes

$9$

$0$

$$seconds$,$ on average, to complete the check in process.