probabilistic

[prob-uh-buh-lis-tik]
adjective
1.
Statistics. of or pertaining to probability: probabilistic forecasting.
2.
of or pertaining to probabilism.

Origin:
1650–60; probabil(ism) or probabil(ity) + -istic; compare French probabiliste believer in probabilism

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World English Dictionary
probabilism (ˈprɒbəbɪˌlɪzəm)
 
n
1.  philosophy the doctrine that although certainty is impossible, probability is a sufficient basis for belief and action
2.  the principle of Roman Catholic moral theology that in a situation in which authorities differ as to what is the right course of action it is permissible to follow any course which has the support of some authority
 
'probabilist
 
n, —adj
 
probabil'istic
 
adj
 
probabil'istically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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FOLDOC
Computing Dictionary

probabilistic definition

probability
Relating to, or governed by, probability. The behaviour of a probabilistic system cannot be predicted exactly but the probability of certain behaviours is known. Such systems may be simulated using pseudorandom numbers. Evolutionary computation uses probabilistic processes to generate new (potential) solutions to a problem.
See also deterministic, non-probabilistic.
(1995-09-22)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
Virtue's link to success is partial and probabilistic, never an absolute
  guarantee.
My strong advocacy for certain policy steps is based on a probabilistic
  understanding of outcomes and costs, not on certainty.
These eggheads are now in the dock, along with their probabilistic models.
First, perform thousands of fatigue tests in the laboratory and then take a
  probabilistic view of things.
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