What type of sampling is being employed if the country is divided into economic classes and a sample is chosen from each class to be surveyed?

The sampling method being employed is called stratified sampling. In this approach, the population is divided into distinct subgroups, or strata, based on specific characteristics—in this case, economic classes. A sample is then drawn from each stratum to ensure representation from all segments of the population, which can lead to more accurate and reliable results.