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on a random basis

См. также в других словарях:

  • random — ran‧dom [ˈrændəm] adjective 1. random sample/​ check/​test etc a sample, check etc in which things or people are chosen without any particular reason or pattern so that they will include a typical mixture of the larger group they represent: • The …   Financial and business terms

  • Random Gender — in 1986 Left to Right – Richard Hughes, Simon Cousins, Pat D’Arcy, Jon Cousins, Myke Vince Background information Origin Castle Combe …   Wikipedia

  • Random assignment — or random placement is an experimental technique for assigning subjects to different treatments (or no treatment). The thinking behind random assignment is that by randomizing treatment assignment, then the group attributes for the different… …   Wikipedia

  • Random close pack — Random close packing (RCP) is an empirical parameter used to characterize the maximum volume fraction of solid objects obtained when they are packed randomly. For example, when a solid container is filled with grain, shaking the container will… …   Wikipedia

  • Random number generation — A random number generator (often abbreviated as RNG) is a computational or physical device designed to generate a sequence of numbers or symbols that lack any pattern, i.e. appear random. Computer based systems for random number generation are… …   Wikipedia

  • Random variable — A random variable is a rigorously defined mathematical entity used mainly to describe chance and probability in a mathematical way. The structure of random variables was developed and formalized to simplify the analysis of games of chance,… …   Wikipedia

  • Random effects model — In statistics, a random effect(s) model, also called a variance components model is a kind of hierarchical linear model. It assumes that the data describe a hierarchy of different populations whose differences are constrained by the hierarchy. In …   Wikipedia

  • Random checkpoint — Mexican troops operating in a random checkpoint A random checkpoint (also known as a flying checkpoint , mobile checkpoint or hasty checkpoint ) is a military and police tactic involving the set up of a hasty roadblock primarily by mobile truck… …   Wikipedia

  • random sampling — noun the selection of a random sample; each element of the population has an equal chance of been selected • Hypernyms: ↑sampling • Hyponyms: ↑lucky dip * * * Statistics. a method of selecting a sample (random sample) from a statistical… …   Useful english dictionary

  • random sample — a subgroup of a total population (the so called universe) selected by a random process ensuring that each member of the universe has an equal chance of being included in the sample. It is sometimes stratified so that separate samples are drawn… …   Medical dictionary

  • random sampling — The selection of a *sample of data from a *population on the basis that each item in the population has an even chance of being selected. In random sampling, there is no judgmental element to skew the sample. See also *stratified sampling and… …   Auditor's dictionary

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