Normal distribution

7/3/2023 MyOpenMath Suppose thatthe speed at which cars go on the freeway is normally distributed with mean 66 mph and standard devration 10 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. 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 63 mph. c. If one of the cars is randOmly chosen, find the probability that it is traveling betWEen 68 and 74 mph. .' d. 90% of all cars travel at least how fast on the freeway? mph. ~_-J Hint