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stochastic

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UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/stɒˈkæstɪk/US:USA pronunciation: respellingUSA pronunciation: respelling(stə kastik)


WordReference Random House Unabridged Dictionary of American English © 2026
sto•chas•tic  (stə kastik),USA pronunciation adj. [Statistics.]
  1. Statisticsof 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.
  • Greek stochastikós, equivalent. to stochas- (variant stem of stocházesthai to aim at) + -tikos -tic
  • 1655–65
sto•chasti•cal•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::
stochastic /stɒˈkæstɪk/ adj
    • (of a random variable) having a probability distribution, usually with finite variance
    • (of a process) involving a random variable the successive values of which are not independent
    • (of a matrix) square with non-negative elements that add to unity in each row
  1. rare involving conjecture
Etymology: 17th Century: from Greek stokhastikos capable of guessing, from stokhazesthai to aim at, conjecture, from stokhos a target
'stochastic' also found in these entries (note: many are not synonyms or translations):

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