Stochastic

Stochastic
Stochastic Sto*chas"tic (st[-o]*k[a^]s"t[i^]k), a. [Gr. stochastiko`s, from stocha`zesqai to aim, to guess, fr. sto`chos mark or aim.] 1. Conjectural; able to conjecture. [Obs.] --Whitefoot. [1913 Webster]

2. random; chance; involving probability; opposite of {deterministic}. [GG]

3. (Statistics) of or pertaining to a process in which a series of calculations, selections, or observations are made, each one being randomly determined as a sample from a probability distribution.

Note: Where physical phenomena are modelled as a stochastic process, each subsequent calculation of a series may depend on the result of the previous calculation, as in the modelling of the process of diffusion of molecules. Many series may be calculated, and the results averaged, to estimate the most likely result. See also {Markov chain}. [PJC] -- {sto*chas"tic*al*ly}, adv. [PJC]


The Collaborative International Dictionary of English. 2000.

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  • stochastic — 1660s, pertaining to conjecture, from Gk. stokhastikos able to guess, conjecturing, from stokhazesthai guess, from stokhos a guess, aim, target, mark, lit. pointed stick set up for archers to shoot at (see STING (Cf. sting)). The sense of… …   Etymology dictionary

  • stochastic — [stō kas′tik, stəkas′tik] adj. [< Gr stochastikos, proceeding by guesswork, lit., skillful in aiming < stochazesthai, to aim at < stochos, a target: for IE base see STING] 1. of, pertaining to, or arising from chance; involving… …   English World dictionary

  • stochastic — adjective Etymology: Greek stochastikos skillful in aiming, from stochazesthai to aim at, guess at, from stochos target, aim, guess more at sting Date: 1934 1. random; specifically involving a random variable < a stochastic process > 2. involving …   New Collegiate Dictionary

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