C9. You’ve been asked to determine the percentage of students at your university who support open border policies that would allow folks to freely move between international jurisdictions with minimal or no restrictions. You want to take a sample of 10% of the students enrolled on your campus to make the estimate using a survey you created.

Explain whether each of the following scenarios describes a reliable sample reflective of all students at your university.

1. You distribute your survey to all students eating lunch in your campus student union on a Tuesday at 12:30 p.m.

2. You attend a rally on your campus in support of DACA (Deferred Action for Childhood Arrivals) and ask everyone in attendance to complete your survey.

3. What sampling procedure would you recommend to complete your study?