Question 4, Calculate an expected value, given a percentage Vanessa's Vans finds that about 40% of the time, a person who makes an advance reservation for
transportation does not keep the reservation. Therefore, for each of their 10-passenger vans, Vanessa's
Vans schedules 13 persons on the basis of advance reservations.
Based on the information above, about how many riders out of the 13 scheduled would not keep their
reservation?
a. 1
b. 3
C. 5
d. 7
e. 9