Fifty-Five Percent of the Lunches at a Very Large High

Essay

Fifty-five percent of the lunches at a very large high school are purchased using
"lunch cards" rather than cash. Assume that the method of payment (cash or lunch
card) for one student is independent of the method of payment for the next student in
line. What is the probability of observing the following sequence of purchase
methods for the first five students through the lunch line?
Cash, Card, Cash, Card, Cash