cluster+sample

См. также в других словарях:

• cluster sample — a variation of a random sample in which the population is divided into groups on the basis of some shared characteristic (such as hospitals grouped by geographic region) and a random sample is drawn from each group …   Medical dictionary

• 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

• CLUSTER-Satelliten — Cluster ist ein Satellitenprojekt der ESA und NASA zur Erforschung der irdischen Magnetosphäre. Es erlitt 1996 einen Rückschlag beim Fehlstart der ersten Ariane 5 Rakete, ist aber seit Sommer 2000 mit Reservesatelliten in Betrieb. Es besteht aus… …   Deutsch Wikipedia

• Cluster (spacecraft) — Cluster Operator European Space Agency in international collaboration with NASA Major contractors Dornier GmbH (now part of EADS) Mission type Orbiter Satellite of Earth …   Wikipedia

• Sample size determination — is the act of choosing the number of observations to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample …   Wikipedia

• Cluster (Satellit) — Cluster ist ein Satellitenprojekt der ESA und NASA zur Erforschung der irdischen Magnetosphäre. Es erlitt 1996 einen Rückschlag beim Fehlstart der ersten Ariane 5 Rakete, ist aber seit Sommer 2000 mit Reservesatelliten in Betrieb. Es besteht aus… …   Deutsch Wikipedia

• cluster — clusteringly, adv. clustery, adj. /klus teuhr/, n. 1. a number of things of the same kind, growing or held together; a bunch: a cluster of grapes. 2. a group of things or persons close together: There was a cluster of tourists at the gate. 3. U.S …   Universalium

• Cluster analysis — The result of a cluster analysis shown as the coloring of the squares into three clusters. Cluster analysis or clustering is the task of assigning a set of objects into groups (called clusters) so that the objects in the same cluster are more… …   Wikipedia

• Sample (statistics) — In statistics, a sample is a subset of a population. Typically, the population is very large, making a census or a complete enumeration of all the values in the population impractical or impossible. The sample represents a subset of manageable… …   Wikipedia

• sample — imtis statusas T sritis biomedicinos mokslai apibrėžtis 1) iš ↑populiacijos tyrimui atrinktų individų grupė; 2) iš ↑generalinės aibės tyrimui atrinktų objektų poaibis. Imtis gali būti atsitiktinė arba neatsitiktinė ir reprezentatyvioji arba… …   Lithuanian dictionary (lietuvių žodynas)

• sample — 1) A small quantity of a commodity, etc. , selected to represent the bulk of a quantity of goods. See sale by sample 2) A small quantity of a product, given to potential buyers to enable them to test its suitability for their purposes. 3) A group …   Big dictionary of business and management