Asample of blood pressure measurements is taken for a group of adults, and those values (mm hg) are listed below. the values are matched so that 10 subjects each have a systolic and diastolic measurement. find the coefficient of variation for each of the two samples; then compare the variation.

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.