Suppose that you select a sample of students at your university by standing in front of the library and asking students who pass by to take a survey.
a. Would this be a simple random sample from the population of all students at your university? Explain briefly.
b. Name a variable for which you believe that this sample would be representative of the population of all students at your university. Explain briefly.
c. Name a variable for which you believe that this sample would not be representative of the population of all students at your university. Explain briefly.