A survey was issued by an alumni association to its members in order to develop an alumni profile". From the following select all questions that would yield numerical data. How many years has it been since your graduation from the college? In what area was your undergraduate major? Have you ever commenced postgraduate study? What is your current annual salary (in thousands)? How many different full-time jobs (other than your present one) have you held in the past 10 years? What was your cumulative grade point average? What is your gender