The chair of the psychology department wants to determine the average GPA of all psychology majors at the college. She compiles a list of the GPAs of all the psychology majors and calculates the average. The chairperson is working with data from a(n):A) invalid source.B) population.C) sample.D) case study.
Explanation: The correct answer is letter C, sample. By compiling a list of all the GPAs of all psychology majors the chairperson is taking a sample of their psychology department and not the total population of GPAs majoring psychology.
