Answer :
The sampling method used here is systematic sampling.
What is systematic sampling?
- To generate a representative sample from a population, systematic sampling is a probability sampling technique.
- An advantage of systematic sampling is that it does not necessitate a comprehensive population list in advance.
- A sort of probability sampling technique called systematic sampling involves choosing individuals from a broader population using random beginning points and defined intervals.
- Random systematic samples, linear systematic samples, and circular systematic samples are the three primary categories of systematic samples.
- Here , this scenario is systematic sampling since it entails choosing n at random and selecting every nth person in the audience starting at a random point.
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