Question

Before premiering a blockbuster movie at a theater, test screenings are done beforehand. A small number of selected theaters are chosen geographically throughout the country. Each theater chosen is supposed to be representative of theatergoers in that area. Everyone is interviewed when the movie is over. Identify the type of sampling used in this example.

A) Attempted census
B) Systematic sampling
C) Stratified sampling
D) Cluster sampling

Answer 1

The sampling method used in the described scenario of test screenings is Cluster Sampling, where theaters serve as clusters that represent geographic areas.

Step-by-step explanation:

In the example of test screenings of a blockbuster movie at selected theaters geographically throughout the country, the type of sampling used is Cluster Sampling. This is because in cluster sampling, researchers divide the overall population into clusters based on characteristics such as shared cities or schools and then randomly select people to poll from within those clusters. In the given scenario, each chosen theater represents a cluster that is geographically and demographically representative of theatergoers in that area.