Selecting a random sample from a set is simple. But what about selecting a fair random sample from a set of unknown or indeterminate size? That’s where reservoir sampling comes in, and [Sam Rose] has ...

Why is data sampling important? Data sampling is a widely used statistical approach that can be applied to a range of use cases, such as analyzing market trends, web traffic or political polls. For ...

Accurate forest volume estimation is crucial for sustainable forest management, but the most commonly used methods often rely on models that may not always be applicable across different tree species ...

Manufacturers must employ sample sizes that ensure that packaging systems are safe, meet regulatory requirements, and maintain sterility. Photo courtesy of Beacon Convertors (Saddle Brook, NJ). The ...

Cochran (1977) outlines eleven steps in the planning of a survey. Good sampling methods must exist in the environment of all of these steps. These steps are (1) a statement of the survey objectives, ...

Psychometric testing continues to be a contentious issue among recruiters, despite many organisations having adopted testing as an integral part of staff selection. Psychometric testing continues to ...

A recent article explained the role of Gas Chromatography-Mass Spectrometry (GC/MS) in the analytics laboratory. The current article focuses on reviewing the technology used for preparing volatile ...