Bernoulli trial

(redirected from Bernoulli trials)
Also found in: Dictionary, Financial, Encyclopedia.

Ber·noul·li tri·al

A single random event for which there are two and only two possible outcomes that are mutually exclusive and have a priori fixed (and complementary) probabilities of resulting. The trial is the realization of this process. Conventionally one outcome is termed a success and is assigned the score 1, the other is a failure and has the score 0. Thus the outcome might be 0 (no heads, one tail) or 1 (1 head, no tails).
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
The outcome of each of the T x R Bernoulli trials (all of which have success probability p) was simulated using NAG subroutine G05DZF (Numerical Algorithms Group, 1999), and 20,000 such tables were generated per simulation condition.
The probability density function that comes from Bernoulli trials is the binomial pdf, which gives the probability, p, of r successes in n trials of an experiment.
For describing discrete random variables associated with experiments, an important notion is that of Bernoulli trials. There are three characteristics that define such trials:
Bernoulli trials Trials that involve random processes for which there are only two possible outcomes that occur without any fixed pattern, and the probability of either outcome remains fixed for each trial.