Answer:
there should be 1 customer waiting in line at the ticket outlet.
Step-by-step explanation:
To calculate the expected number of customers in the queue, we can use the following formula:
Expected number of customers = Arrival rate * Average waiting time
In this case, the arrival rate is 10 customers per hour and the average waiting time is 6 minutes. Converting the waiting time to hours, we get:
Expected number of customers = 10 customers/hour * (6 minutes / 60 minutes/hour) = 1 customer
So the expected number of customers in the queue is 1. This means that on average, there should be 1 customer waiting in line at the ticket outlet.