Compared to written surveys, phone interviews
a. reduce the problem of question ambiguity.
b. are a lot cheaper.
c. are immune from interviewer bias problems.
d. have a lower response rate.
Question 2
What is the median for the following set of scores? 1, 3, 3, 5, 8, 10
a. 3
b. 4
c. 5
d. 6