Answer:
One student is waiting at the front desk.
Explanation:
By Using Little's law, we have:
L = R * T
Here
L is the average number of items in the system which is average students waiting in this case
R (Arrival Rate) = Total Students / Time taken = 10 Students / 30 minutes
R = 0.33 student per minute
T is the time taken for each student which is 3 minutes
By putting the above values, we have:
L = 0.33 * 3 = 1 student waiting
