Discover how simple random sampling ensures accurate and unbiased population research, offering efficiency and fairness over ...

Many marginalized populations face severe health inequities in developed countries. These include people who are poor, homeless, sell sex or use alcohol or illegal drugs. In Toronto, an estimated 19% ...

PROC SURVEYSELECT provides a variety of methods for selecting probability-based random samples. With probability sampling, each unit in the survey population has a known, positive probablity of ...

A practical method of drawing sampling units with probabilities exactly proportional to size is described, in which both preliminary calculations and the addition of a large number of sizes are ...

Stratified mean-per-unit sampling is a key tool used by auditors. The popularity of this statistical procedure arises from its unique ability to produce trustworthy ...

Sampling is a type of scientific surveying which can save time and money and give information on the population of animals and plants. There are many different types of sampling; the most useful type ...