Fuel economy estimates for automobiles built one year predicted a mean of 25.4 mpg and a standard deviation of 5.7 mpg for highway driving. Assuming the gas mileages for automobiles are normally distributed, use theEmpiricalRuleto answer the following:

• The middle 99.7% of automobiles can be expected to have gas mileages betweenand.
• Approximately% of automobiles will have a gas mileage more than 8.3 mpg.
• Approximately% of automobiles will have gas mileages between 14 and 19.7.
• Which of the statements below describes the gas mileages of the best 2.5% of cars?
• They get less than 14 mpg.
• They get more than 36.8 mpg.
• They get less than 8.3 mpg.
• They get more than 42.5 mpg.