Consider conducting an evaluation in your organization. Think of a population of clients/constituents/members from whom you might wish to collect data. Identify this population and subgroups of this population that might be hard to reach in the data collection process. Examples might include: phone interviews in which hearing challenged people might not be able to participate or simply folks who simply do not want to complete a survey. Which approach to sampling might you use and how might you avoid missing subgroups that you would want to participate in your data collection.

which of the followings

Simple Random Sampling

Cluster Random Sampling

Systematic Random Sampling

Stratified Random Sampling

Multistage Random Sampling

Sampling and Statistical Inference

Nonprobability Sampling Design