Focus on the development and collection of data, emphasizing the importance of simple random sampling.

An online statistics glossary which contains the definition for stratified sampling. Lists reasons for using stratified sampling instead of simple random sampling and gives an example situation in which stratified sampling may be used.

This site from Cornell University contains great information on random or probability sampling. Definitely a site worth checking out on the subject.

[Free Registration/Login may be required to access all resource tools.] This Concept introduces students to the most basic counting rule: the multiplication rule. It also explains the probability of simple random samples.

This lesson will define the term unbiased sample, and present the different types of unbiased sampling methods (e.g. simple random sample, stratified random sample, systematic random sample). It is 1 of 4 in the series titled "Unbiased...

This set contains statistics questions regarding surveys and survey designs. The student differentiates between a systematic sample, a convenience sample, a simple random sample (SRS), and a stratified random sample.