As reported by a spokesperson for Southwest Airlines, the no-show rate for reservations is 16%. In other words, the probability is 0.16 that a person making a reservation will not take the flight. For the next flight, 42 people have reservations. What is the probability that
a. Exactly 5 do not take the flight?
b. Between 9 and 12, inclusive, do not take the flight?
c. At least 1 does not take the flight?
d. At most 2 do not take the flight?
e. Comment on the accuracy of the normal approximation in this case.