Question 9 Suppose that the speed at which cars go on the freeway is normally distributed with mean 66 mph and standard deviation 10 miles per hour. Let X be the speed for a randomly selected car. a. What is the distribution of X? X ~ N( b. If one car is randomly chosen, find the probability that it is traveling more than 64 mph. Round to 4 decumal places. c. If one of the cars is randomly chosen, find the probability that it is traveling between 68 and 72 mph. Round to 4 decimal places