The professors at Wilfrid Laurier University are required to submit their final exams to the registrar’s office 10 days before the end of the semester.

The exam coordinator sampled 20 professors and recorded the number of days before the final exam that each submitted his or her exam. The results are 14 8 3 2 6 4 9 13 10 12 7 4 9 13 15 8 11 12 4 0

a. Compute the mean, median, and mode.

b. Briefly describe what each statistic tells you.