As reported by a recent survey the fast-food restaurant with the best drive through time had a mean time spent in the drie through of u =63.6 seconds. assuming drive through times are normall distributed o =2.9 seconds. complete parts a through d. (a) what is the probability that a randomly selected car will get through the drive through in less than 60.1 seconds? the probability is round to four decimal places as needed. (b) what is the probability that a randomly selected car will spend more than 70 secs. in the drive through. the probability is decimal places. (c) what proportion of cars spend between 60.1 and 70 seconds in the drive through? would it be unusual for a car to spend oe than 70 seconds in the drive through.