The city council of anytown, u. s.a., is reviewing the funding for local sports-related activities. to be better informed, it commissions a study. order the sample groups, best to worst, based on how well they would represent the population of anytown residents with an active interest in sports.
a. high-school students at three different schools
b. people randomly approached at a softball tournament, a swim meet, an athletic supply store, and a sports bar
c. people randomly approached at a department store and at a shopping mall