Explain, with examples, what is meant by the term stratified random sampling.

Answers will include student examples, but should explain that stratified random sampling is a way to "force" such groups into your sample. To ensure that all the groups of interest are proportionately represented in a sample, you would set aside a number of places in your sample relative to the size of the groups in the population you are drawing from. Then you fill those places by random sampling from those specific subgroups.