**F-distribution** — Probability distribution name =Fisher Snedecor type =density pdf cdf parameters =d 1>0, d 2>0 deg. of freedom support =x in [0, +infty)! pdf =frac{sqrt{frac{(d 1,x)^{d 1},,d 2^{d 2{(d 1,x+d 2)^{d 1+d 2{x,mathrm{B}!left(frac{d 1}{2},frac{d 2}{2}… … Wikipedia

**F distribution** — noun A probability distribution of the ratio of two variables, each with a chi square distribution; used in analysis of variance, especially in the significance testing of a correlation coefficient (R squared) … Wiktionary

**F-distribution** — the ratio of two independent chi square distributions; the exact sampling distribution of the ratio of variances from two independent samples from identical normal distributions … Medical dictionary

**Noncentral F-distribution** — In probability theory and statistics, the noncentral F distribution is a continuous probability distribution that is a generalization of the (ordinary) F distribution. It describes the distribution of the quotient (X/n1)/(Y/n2), where the… … Wikipedia

**F (disambiguation)** — F is the sixth letter of the Latin alphabet. F may also refer to:cience*Fahrenheit *Farad, a unit for electric capacitance *Faraday constant *Fluorine *Focal length **f number, the focal length divided by the aperture diameter *Force *FrequencyAs … Wikipedia

**Distribution** — Dis tri*bu tion, n. [L. distributio: cf. F. distribution.] 1. The act of distributing or dispensing; the act of dividing or apportioning among several or many; apportionment; as, the distribution of an estate among heirs or children. [1913… … The Collaborative International Dictionary of English

**F-ratio (disambiguation)** — F ratio or f ratio may refer to:* f number, f ratio, or focal ratio, the ratio of the focal length of an optical system to the diameter of its entrance pupil; * f ratio, in oceanography, which relates recycled and total primary production in the… … Wikipedia

**F-test** — An F test is any statistical test in which the test statistic has an F distribution if the null hypothesis is true. The name was coined by George W. Snedecor, in honour of Sir Ronald A. Fisher. Fisher initially developed the statistic as the… … Wikipedia

**distribution logarithmonormale** — logaritminis normalusis skirstinys statusas T sritis fizika atitikmenys: angl. logarithmic normal distribution; lognormal distribution vok. logarithmische Normalverteilung, f; lognormale Verteilung, f; Lognormalverteilung, f rus. логарифмически… … Fizikos terminų žodynas

**distribution lognormale** — logaritminis normalusis skirstinys statusas T sritis fizika atitikmenys: angl. logarithmic normal distribution; lognormal distribution vok. logarithmische Normalverteilung, f; lognormale Verteilung, f; Lognormalverteilung, f rus. логарифмически… … Fizikos terminų žodynas