The following are the sample data sets from your class project about waiting line theories: Arrival: 2, 4, 3, 1,3 Service time: 46, 43, 65, 56, 39 The arrival data were number of cars arrived per every 5-minute interval, and the service data were the number of seconds spent on taking the corresponding order. Based on the sample data, what is the average service rate (i.e. # of cars served per interval) for this ordering system? Give your answer to 2 significant places