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simple+random+sample

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  • Simple random sample — In statistics, a simple random sample is a subset of individuals (a sample) chosen from a larger set (a population). Each individual is chosen randomly and entirely by chance, such that each individual has the same probability of being chosen at… …   Wikipedia

  • Simple Random Sample — A subset of a statistical population in which each member of the subset has an equal probability of being chosen. A simple random sample is meant to be an unbiased representation of a group. An example of a simple random sample would be a group… …   Investment dictionary

  • simple random sample — paprastoji atsitiktinė imtis statusas T sritis Standartizacija ir metrologija apibrėžtis Imtis, sudaryta iš n vienetų, atsitiktinai paimtų iš aibės, kai visi galimi n ėmimo vienetų deriniai turi tą pačią tikimybę. atitikmenys: angl. simple random …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • simple random sample — paprastoji atsitiktinė imtis statusas T sritis biomedicinos mokslai atitikmenys: angl. simple random sample ryšiai: platesnis terminas – imtis šaltinis Pagrindinės epidemiologijos sąvokos : mokomasis žodynas / Kauno medicinos universitetas ;… …   Lithuanian dictionary (lietuvių žodynas)

  • Random sample — A sample is a subject chosen from a population for investigation. A random sample is one chosen by a method involving an unpredictable component. Random sampling can also refer to taking a number of independent observations from the same… …   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)

  • Random walk — A random walk, sometimes denoted RW, is a mathematical formalization of a trajectory that consists of taking successive random steps. The results of random walk analysis have been applied to computer science, physics, ecology, economics and a… …   Wikipedia

  • Sample size — The sample size of a statistical sample is the number of observations that constitute it. It is typically denoted n , a positive integer (natural number).Typically, all else being equal, a larger sample size leads to increased precision in… …   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

  • 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

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