**Sampling (statistics)** — Sampling is that part of statistical practice concerned with the selection of individual observations intended to yield some knowledge about a population of concern, especially for the purposes of statistical inference. Each observation measures… … Wikipedia

**Sampling (music)** — This article is about reusing existing sound recordings in creating new works. For other uses, see Sample (disambiguation). In music, sampling is the act of taking a portion, or sample, of one sound recording and reusing it as an instrument or a… … Wikipedia

**sampling** — /sam pling, sahm /, n. 1. the act or process of selecting a sample for testing, analyzing, etc. 2. the sample so selected. [1630 40; SAMPLE + ING1] * * * ▪ statistics in statistics, a process or method of drawing a representative group of… … Universalium

**Sampling design** — In the theory of finite population sampling, a sampling design specifies for every possible sample its probability of being drawn.Mathematically, a sampling design is denoted by the function P(S) which gives the probability of drawing a sample S … Wikipedia

**Poisson sampling** — In the theory of finite population sampling, Poisson sampling is a sampling process where each element of the population that is sampled is subjected to an independent Bernoulli trial which determines whether the element becomes part of the… … Wikipedia

**chemical element** — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… … Universalium

**Bernoulli sampling** — In the theory of finite population sampling, Bernoulli sampling is a sampling process where each element of the population that is sampled is subjected to an independent Bernoulli trial which determines whether the element becomes part of the… … Wikipedia

**Stratified sampling** — In statistics, stratified sampling is a method of sampling from a population.When sub populations vary considerably, it is advantageous to sample each subpopulation (stratum) independently. Stratification is the process of grouping members of the … Wikipedia

**Systematic sampling** — is a statistical method involving the selection of every k th element from a sampling frame, where k , the sampling interval, is calculated as:::: k = population size ( N ) / sample size ( n )Using this procedure each element in the population… … Wikipedia

**Cluster sampling** — is a sampling technique used when natural groupings are evident in a statistical population. It is often used in marketing research. In this technique, the total population is divided into these groups (or clusters) and a sample of the groups is… … Wikipedia