Education researchers are interested in the workload expectations of freshmen at a local university. Which of the following techniques would give a stratified random sample?
O Randomly select 10 freshmen from each of the majors at the university.
O Randomly select 10 freshmen from the cafeteria on each of the 5 days of the first school week.
O Randomly select 1 professor at the university and have them survey all of their freshman students.
O Survey the students in some randomly selected freshman seminar classes, since freshmen are randomly put into
those classes.