Sandra is doing research to determine how common cheating is among students at duke university. the student body at duke will serve as her:

Sandra is doing research to determine how common cheating is among students at duke university. The student body at duke will serve as her population, in which population is an entire group of individual persons, objects or items from which samples may be drawn. In addition, if sandra needs to take a broad view the conclusion of her study to alternative probably larger population in which it is significant that the people in her study be representative of the groups she desires to take a broad view.