Please be sure to show all work to receive full credit. No credit will be given for an answer that is correct but has no work where it is necessary, or if the work shown does not logically equate to the given answer. No credit will be given for an incorrect answer with no work. 1. The average speed of a driving down the freeway is 55mph and a standard deviation of 8mph. This speed can be modeled by a normal distribution. Find the probabilities that: a. The next car is driving more than 67 mph. b. The next car is driving between 67 and 78 mph.