Sampling techniques are discussed. Quota sampling. Another approach is quota sampling; in this method, our selection is guided by creating a sample similar to the population. For example, assuming 30% ...

Techniques for using electoral registers to provide a sampling frame for the general population are already well established. The best known is that used on the National Readership Survey and most ...

The method of systematic random sampling (METHOD=SYS) selects units at a fixed interval throughout the sampling frame or stratum after a random start. PROC SURVEYSELECT chooses the first unit randomly ...

Prasanta Chandra Mahalanobis, the Indian statistician who founded the Indian Statistical Institute and pioneered large-scale sample survey methodology, changed how the world collects data. His methods ...

A study by the universities of Cordoba and Seville develops a method that makes it possible to verify, easily and quickly, whether an olive plantation is traditional, intensive, or super-intensive.

In a recently published news story, we learn about a young doctor, Jake Deutsch, and his personal experience with coronavirus disease 2019. Deutsch tested positive for Covid-19 and checked himself ...