Question

researchers are conducting a survey about what brand of ice cream shoppers prefer. they survey the tenth person who walks into the store and then every fifth person after that. this type of sampling is called
random sampling.
stratified sampling.
systematic random sampling.
cluster sampling.

Explanation:

Systematic random sampling involves selecting every k - th element from an ordered population. Here, every fifth person after the tenth person is selected, fitting this sampling method. Random sampling has no fixed pattern. Stratified sampling divides the population into subgroups first. Cluster sampling groups the population into clusters and samples some clusters.

Answer:

C. systematic random sampling