You are looking at two used cars at a dealership. They are both the same year, make, model, color and price. You decide to ask the salesman which is more reliable. He tells you that car number one does not run roughly ten days per year with a standard deviation in the number of days it will break down of 1.2 days. Car number two does not run about eleven days per year with a standard deviation of four days. Which car is more consistent about when it will and will not run? Why?