Roger Amster teaches an English course in which 40 students are enrolled. After yesterday's class, Roger questioned the 5 students who always sit in the back of the classroom. Three of the 5 said "yes" when asked if they would like A Tale of Two Cities as the next class reading assignment.

a. Identify the population and the sample in this situation.

b. Is this likely to be a representative sample? If not, whynot?