- interval variable
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An ordinal variable with the additional property that the magnitudes of the differences between two values are meaningful.Syn: equal-interval variable
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interval variable
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Interval arithmetic — Interval arithmetic, also called interval mathematics , interval analysis , and interval computation , is a method in mathematics. It has been developed by mathematicians since the 1950s and 1960s as an approach to putting bounds on rounding… … Wikipedia
interval of convergence — Math. an interval associated with a given power series such that the series converges for all values of the variable inside the interval and diverges for all values outside it. Cf. circle of convergence. * * * … Universalium
variable — 1. That which is inconstant, which can or does change, as contrasted with a constant. 2. Deviating from the type in structure, form, physiology, or behavior. [L. vario, to vary, change, differ] continuous v. a v. that may take on any … Medical dictionary
interval of convergence — Math. an interval associated with a given power series such that the series converges for all values of the variable inside the interval and diverges for all values outside it. Cf. circle of convergence … Useful english dictionary
variable — In the physical sciences, variables are the characteristics of entities which are physically manipulated, such as the heat or volume of a substance. In the social sciences, the term refers to attributes which are fixed for each person or other… … Dictionary of sociology
interval — A time or space between two periods or objects; a break in continuity. [L. inter vallum, space between breastworks in a camp, an i., fr. vallum, a rampart, wall] a c i. the i. between the onset of the a wave and that of the c wave of the jugular… … Medical dictionary
variable coupling — coupling in which the interval between extrasystoles and the sinus beats preceding them is not constant … Medical dictionary
ratio variable — noun A variable with the features of interval variable and, additionally, whose any two values have meaningful ratio, making the operations of multiplication and division meaningful … Wiktionary
Confidence interval — This article is about the confidence interval. For Confidence distribution, see Confidence Distribution. In statistics, a confidence interval (CI) is a particular kind of interval estimate of a population parameter and is used to indicate the… … Wikipedia
Prediction interval — In statistics, a prediction interval bears the same relationship to a future observation that a confidence interval bears to an unobservable population parameter. Prediction intervals predict the distribution of individual points, whereas… … Wikipedia
