Polling and Sampling Questions

1. Attendee Selection for a Conference
- The organizers take a list of the attendees and select every 3rd attendee until 78 attendees are selected.
- The organizers form groups of 13 attendees based on the day the attendees registered. Then, the organizers randomly choose 6 groups and select all of the attendees in these groups.
- The organizers select the first 78 attendees who register for the conference because these attendees are easily accessible.

2. Polling College Students
- Counselors at a college want to poll students about how much time the students spend studying. Which of the following best describes a random sample of students?
A. The counselors take a list of the students and select every 7th student until 56 students are selected.
B. The students living in a particular dorm building on campus are easily accessible. So, the counselors select the 56 students living in that particular dorm building.
C. The counselors use a computer program to draw 56 students at random and select these students. Every set of 56 students is equally likely to be drawn by the computer program.

3. Sampling Seats at a Sports Stadium
- A facilities supervisor at a sports stadium wants to rate the condition of the seats at the stadium. Which of the following best describes a cluster sample of seats?
A. The supervisor uses a computer program to draw 80 seats at random and selects these seats. Every set of 80 seats is equally likely to be drawn.