Determine whether the experiments in Exercises 5–8 represent an independent sampling method or a dependent sampling method. Explain your answer.
7. Before the first lecture, an algebra instructor gives a pretest to his students to determine the students' algebra readiness. At the end of the course, the instructor gives a post-test to the same students and compares the results with the pretest.
10.1.7
Since the same students are taking both tests, this is an example of dependent sampling.