Définition Sample
A sample is a selection of people or objects that are representative of a population. Based on those surveyed as a sample we draw conclusions about the population as a whole.
It is a prerequisite for a statistically meaningful result that the sample, e.g. 2,000 Americans who were questioned on the phone will be a representative cross-section of, for example, all adult Americans over 21 years of age.
In order to select a sample, there are several methods – the most popular being random sampling, cluster sampling and quota sampling.
Les définitions de notre encyclopédie sont des explications simplifiées de termes. Notre but est de rendre ces définitions compréhensibles pour un large public. Par conséquent, il est possible que certaines d’entre elles ne soient pas entièrement à la hauteur des standards scientifiques.