Every year, a large-scale poll of college fresh- men conducted by the Higher Education Research Institute at UCLA asks their opinions about at variety of issues. In 2002, 46% of men and 35% of women in the survey of 283,000 college freshmen indicated support for legalization of marijuana.

(a) If results for the population of college fresh- men were similar to these, would gender and opinion about legalizing marijuana be inde- pendent, or dependent?

(b) Display hypothetical population percentages in a contingency table for which these vari- ables would be independent.