| stochastic | Random or probabilistic event. (18 Nov 1997) |
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| stochastic independence | Independence of two or more events or variables; the state in which their joint probability or distribution is equal to the product of their marginal probabilities or distributions. (05 Mar 2000) |
| stochastic model | <epidemiology> A mathematical model which takes into consideration the presence of some randomness in one or more of its parameters or variables. The predictions of the model therefore do not give a single point estimate but a probability distribution of possible estimates. Contrast with deterministic. We might distinguish demographic stochasticity which arises from the discreteness of individuals and individual events such as birth, and environmental stochasticity arising from more-or-less unpredictable interactions with the outside world. (05 Dec 1998) |
| stochastic process | A process that incorporates some element of randomness. Origin: G. Stochastikos, pertaining to guessing, fr. Stochazomai, to guess (05 Mar 2000) |
| stochastic processes | Processes that incorporate some element of randomness, used particularly to refer to a time series of random variables. (12 Dec 1998) |