Answer:
Cluster Sample
Step-by-step explanation:
A cluster sample is obtained by dividing the population into homogeneous groups and randomly selecting individuals from each group. This is commonly used in marketing research.
The other sampling methods are explained below:
A simple random sample is where each member of the sample is selected randomly from the population. Each member has an equal chance of being selected.
A convenience sample is picking the part of the population that is close at hand. It is useful when pilot testing a product.
A Systematic sample involves ordering the population in a list and selecting the sample at regular intervals.
Stratified sampling is used when the subpopulation varies and a sample is taken from each subpopulation.
