What are some real-world examples of sampling methods?

What are some real-world examples of sampling methods?

There are several sampling methods used in various fields. For instance, in market research, random sampling is often used to gather opinions from a diverse group of consumers.

Can you give me an example of stratified sampling?

Sure! In stratified sampling, a researcher might divide a population into subgroups, like age or income level, and then randomly sample from each subgroup to ensure representation.

What about cluster sampling? How does that work?

Cluster sampling involves dividing the population into clusters, usually geographically, and then randomly selecting entire clusters to study. For example, a researcher might choose specific schools in a district to survey students.

Are there any disadvantages to these sampling methods?

Yes, each method has its drawbacks. For instance, random sampling can be costly and time-consuming, while cluster sampling may introduce bias if the clusters are not representative.