Fuel economy estimates for automobiles built one year predicted a mean of 27.2mpg and a standard deviation of 5.8mpg for highway driving. Assume that a normal model can be applied.
Part 1: What is the proability that a randomly selected automobile built this particular year gets more than 19.66mpg? (round 4 decimal places)
Part 2: The lowest 5% of gas mileages of automobiles built this particular year get less than how many miles per gallon? (round 1 decimal place)