Question

eli wants to know which exhibit at a science museum is the most popular. which is the best group to survey to find this information?
a group of classmates
every person buying a ticket to the science museum
the museum staff who set up all of the current exhibits
every fifth person who leaves the museum one afternoon

Explanation:

To determine the most popular exhibit, the survey group should be representative of museum visitors. A group of classmates (first option) is too narrow. Museum staff (third option) have bias. Every fifth person leaving one afternoon (fourth option) is a convenience sample with time bias. Surveying every person buying a ticket (second option) includes all visitors, making it the most representative and unbiased group to find popular exhibits.

Answer:

B. every person buying a ticket to the science museum