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stochastic

[stuh-kas-tik] /stəˈkæs tɪk/
adjective, Statistics.
1.
of or relating to a process involving a randomly determined sequence of observations each of which is considered as a sample of one element from a probability distribution.
Origin
1655-1665
1655-65; < Greek stochastikós, equivalent to stochas- (variant stem of stocházesthai to aim at) + -tikos -tic
Related forms
stochastically, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for stochastically

stochastic

/stɒˈkæstɪk/
adjective
1.
(statistics)
  1. (of a random variable) having a probability distribution, usually with finite variance
  2. (of a process) involving a random variable the successive values of which are not independent
  3. (of a matrix) square with non-negative elements that add to unity in each row
2.
(rare) involving conjecture
Derived Forms
stochastically, adverb
Word Origin
C17: from Greek stokhastikos capable of guessing, from stokhazesthai to aim at, conjecture, from stokhos a target
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for stochastically

stochastic

adj.

1660s, "pertaining to conjecture," from Greek stokhastikos "able to guess, conjecturing," from stokhazesthai "guess," from stokhos "a guess, aim, target, mark," literally "pointed stick set up for archers to shoot at" (see sting). The sense of "randomly determined" is first recorded 1934, from German stochastik.

Online Etymology Dictionary, © 2010 Douglas Harper
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stochastically in Science
stochastic
  (stō-kās'tĭk)   
  1. Involving or containing a random variable or variables.

  2. Involving chance or probability.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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