In a three server set-up, three separate lines form, each line handled by an individual server. The average arrival rate for each server is 11 customers/hr, while the average service rate = 13 customers/per hr/per server. What is the approximate average number of customers in line at each server? (Use 'Multiple Servers, Ave. #in Line' Table). 4.43 a. 4.13 3 a. 4.82