- systematic random sample
- Статистика: систематическая случайная выборка
Универсальный англо-русский словарь. Академик.ру. 2011.
systematic 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
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 (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
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
Systematic error — Systematic errors are biases in measurement which lead to the situation where the mean of many separate measurements differs significantly from the actual value of the measured attribute. All measurements are prone to systematic errors, often of… … 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
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
Systematic Sampling — A method of selecting sample members from a larger population according to a random starting point and a fixed, periodic interval. Typically, every nth member is selected from the total population for inclusion in the sample population.… … Investment dictionary
sample preparation — ▪ chemistry Introduction in analytical chemistry (chemistry), the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special … Universalium
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
Convergence of random variables — In probability theory, there exist several different notions of convergence of random variables. The convergence of sequences of random variables to some limit random variable is an important concept in probability theory, and its applications to … Wikipedia
