A construction Zone has a posted speed limit of 40 miles per hour. The speeds of vehicles passing through this construction zone are normally distributed with a mean of 44 miles per hour and standard deviation of 4 miles per hour.
(A) What is the probability that a vehicle passing through the construction zone exceeds the posted speed limit?
(B) How many cars do you expect to exceed the posted speed limit if 40,000 vehicles passed through the construction zone during the construction?