statistical populations

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• Statistical assumption — Statistical assumptions are general assumptions about statistical populations.Statistics, like all mathematical disciplines, does not generate valid conclusions from nothing. In order to generate interesting conclusions about real statistical… …   Wikipedia

• Statistical survey — Statistical surveys are used to collect quantitative information about items in a population. Surveys of human populations and institutions are common in political polling and government, health, social science and marketing research. A survey… …   Wikipedia

• Statistical mechanics — is the application of probability theory, which includes mathematical tools for dealing with large populations, to the field of mechanics, which is concerned with the motion of particles or objects when subjected to a force.Statistical mechanics …   Wikipedia

• Statistical probability — is a term sometimes used informally as a synonym for frequency probability, which identifies probability with relative frequency over a long series of events or the proportion of an event in a large population.There are several other… …   Wikipedia

• Statistical inference — In statistics, statistical inference is the process of drawing conclusions from data that are subject to random variation, for example, observational errors or sampling variation.[1] More substantially, the terms statistical inference,… …   Wikipedia

• Statistical hypothesis testing — This article is about frequentist hypothesis testing which is taught in introductory statistics. For Bayesian hypothesis testing, see Bayesian inference. A statistical hypothesis test is a method of making decisions using data, whether from a… …   Wikipedia

• Statistical significance — In statistics, a result is called statistically significant if it is unlikely to have occurred by chance. A statistically significant difference simply means there is statistical evidence that there is a difference; it does not mean the… …   Wikipedia

• Statistical power — The power of a statistical test is the probability that the test will reject a false null hypothesis (that it will not make a Type II error). As power increases, the chances of a Type II error decrease. The probability of a Type II error is… …   Wikipedia

• Statistical classification — See also: Pattern recognition See also: Classification test In machine learning, statistical classification is the problem of identifying the sub population to which new observations belong, where the identity of the sub population is unknown, on …   Wikipedia

• Populations and Population Movements — ▪ 1995 Introduction DEMOGRAPHY        World s 25 Most Populous Urban AreasAt midyear 1994, world population stood at 5,607,000,000, according to estimates prepared by the Population Reference Bureau. (See Table (World s 25 Most Populous Urban… …   Universalium

• Statistical theory — The theory of statistics includes a number of topics:Statistical models of the sources of data and typical problem formulation: #Sampling from a finite population #Measuring observational error and refining procedures #Studying statistical… …   Wikipedia