Suppose the Round-Trip Airfare Between Philadelphia and Los Angeles a Month

Suppose the round-trip airfare between Philadelphia and Los Angeles a month before the departure date follows the normal probability distribution with a mean of $387.20 and a standard deviation of $68.50. What is the probability that a randomly selected airfare between these two cities will be more than $450?

A) 0.2033
B) 0.3669
C) 0.0788
D) 0.1788