A Single-Phase Waiting-Line System Meets the Assumptions of Constant Service

Multiple Choice

A single-phase waiting-line system meets the assumptions of constant service time or M/D/1. Units arrive at this system every 10 minutes on average. Service takes a constant 8 minutes. What is the average number in the system, L_s, in units?

A) 1.60
B) 2.40
C) 0.80
D) 1.33
E) -3.13