We know that variability in arrivals/service rates generally increases the probability of longer lines. Sbop A has an average arrival rate of 64/hr (std dev, is 16 ) and an avenge service rate of 75 hr (std dev, is 8 ) Shop B has an average arrival rate of 28/hr (std deviation is 7) and an average service rate of 35/hr (std dev.is 5 ) Based on variability considerations alone, which system has a greater probability of a line developing? Assume the shops are identical in all other relevart respects. Hint. Compare Coeff of Variation (- Std Deviation/Mean) of armval rates as well as of service rates between the fwo shops: 3. The probability of a line developing is the same for both shops b. Shop B Shop A