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.

C

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.

the answer would be in this answer. someone already asked the question.  

answer; form new memories;