Question

ch 8 to assess the opinion of students at the ohio state university about campus safety, a reporter for the student newspaper interviews 15 students she meets walking on the campus late at night who are willing to give their opinion. the sample is
all students at universities with safety issues.
all those students walking on campus late at night.
all students approached by the reporter.
the 15 students interviewed.

Explanation:

A sample in statistics is the subset of the population that is actually observed or studied. Here, the reporter interviewed 15 students (who were willing and met late at night). The first option is incorrect as it's not about all students at universities with safety issues. The second is incorrect as it's not all late - night walking students (only those approached and willing). The third is incorrect as it's not all approached (only those who gave opinion). The 15 interviewed students are the sample.

Answer:

D. the 15 students interviewed.