sample statistic

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• 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

• Sample mean and sample covariance — are statistics computed from a collection of data, thought of as being random.ample mean and covarianceGiven a random sample extstyle mathbf{x} {1},ldots,mathbf{x} {N} from an extstyle n dimensional random variable extstyle mathbf{X} (i.e.,… …   Wikipedia

• Statistic — A statistic (singular) is the result of applying a function (statistical algorithm) to a set of data. More formally, statistical theory defines a statistic as a function of a sample where the function itself is independent of the sample s… …   Wikipedia

• Sample maximum and minimum — Box plots of the Michelson–Morley experiment, showing sample maximums and minimums. In statistics, the maximum and sample minimum, also called the largest observation, and smallest observation, are the values of the greatest and least elements of …   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

• statistic — noun Etymology: singular of statistics Date: 1880 1. a single term or datum in a collection of statistics 2. a. a quantity (as the mean of a sample) that is computed from a sample; specifically estimate 3b b. a random variable that takes on the… …   New Collegiate Dictionary

• statistic — noun a) A single item in a statistical study. By dying from an overdose, he became just another statistic. b) A quantity calculated from the data in a sample, which characterises an important aspect in the sample (such as …   Wiktionary

• statistic — sta·tis·tic (stə tisґtik) [back formation from statistics, q.v.] 1. an item of numerical data. 2. a value summarizing, representing, or characterizing some aspect of a sample or the population from which the sample was drawn …   Medical dictionary

• statistic — /steuh tis tik/, n. Statistics. a numerical fact or datum, esp. one computed from a sample. [1780 90; < NL statisticus. See STATUS, ISTIC] * * * …   Universalium

• statistic — sta•tis•tic [[t]stəˈtɪs tɪk[/t]] n. sta a numerical fact or datum, esp. one computed from a sample • Etymology: 1875–80 …   From formal English to slang

• Sufficient statistic — In statistics, a sufficient statistic is a statistic which has the property of sufficiency with respect to a statistical model and its associated unknown parameter, meaning that no other statistic which can be calculated from the same sample… …   Wikipedia