If you are comparing two quantities using percentages, you can also compare them using fractions. Drawing a tape diagram can sometimes help us see how to do this more easily. If you have `50\%` of the money needed to buy a book, what fraction is that?

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.