Chest circumferences of adult males are known to follow a Normal distribution with mean 40 inches and standard deviation 2.1 inches. Suppose we collect a random sample of 73 adult males. What is the probability that the average chest circumference of this group will be exactly 40.01 inches?
a. 0.5948
b. We cannot answer this question with the information given.
c. 0.2400
d. 0.4052
e. 0.0000