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stochastic

[stuh-kas-tik]

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adjective Statistics.

of or pertaining 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:
1655–65; < Greek stochastikós, equivalent to stochas- (variant stem of stocházesthai to aim at) + -tikos -tic

Related forms

sto·chas·ti·cal·ly, adverb

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Stochastic is always a great word to know.

So is callithumpian. Does it mean:

a scrap or morsel of food left at a meal.

a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.

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Example Sentences

Astrophysics doesn't require stochastic differential equations.

Open source communities are hierarchical, not stochastic.

The effect is known as stochastic resonance, and it occurs in electronic circuits, global climate models and nerve cells.

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Collins

World English Dictionary

stochastic (stɒˈkæstɪk)

—*adj*
1.	statistics
	a. (of a random variable) having a probability distribution, usually with finite variance
	b. (of a process) involving a random variable the successive values of which are not independent
	c. (of a matrix) square with non-negative elements that add to unity in each row
2.	rare involving conjecture

[C17: from Greek stokhastikos capable of guessing, from stokhazesthai to aim at, conjecture, from stokhos a target]

sto'chastically

—*adv*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline

Word Origin & History

stochastic

1662, "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). The sense of "randomly determined" is first recorded

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1934, from Ger. Stochastik.

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Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Science Dictionary

stochastic

(stō-kās'tĭk) Pronunciation Key