Fifty-Five Percent of the Students at Thomas Jefferson High School

Essay

Fifty-five percent of the students at Thomas Jefferson High School use "lunch cards" to charge their lunch, rather than bringing money to school. Assuming 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 for the first five students through the lunch line? Cash, Card, Cash, Card, Cash