Answer
The population is all the third- to twelfth-grade students. The sample is the 2002 third- to twelfth-grade students that were surveyed.
Work Step by Step
The question of interest is how much time third- to twelfth-grade students devoted per day to using entertainment media. Therefore, the population is the total amount of third- to twelfth-grade students. The sample, which is a subset of the population, is the 2002 third- to twelfth-grade students that were surveyed for the study.