Math 2.0

Probability theory and stochastic processes Concept

Bernoulli trial

Builds on Random experiment

Summary

A Bernoulli trial is a random experiment with exactly two possible outcomes, called success and failure. The probability pp of success is the same each time the trial is repeated, and the failure has probability q=1−pq = 1 - p. A sequence of Bernoulli trials usually means independent repetitions of one trial. The number of successes in nn such trials has the binomial distribution.

Remarks

The outcome of one trial, coded as 11 for success and 00 for failure, has the Bernoulli distribution. The trials are named after Jacob Bernoulli, who studied them in his book Ars Conjectandi of 1713. Examples are a coin toss, with heads as success, and a roll of a die, with a six as success and p=1/6p = 1/6.

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Further reading

  1. Web https://en.wikipedia.org/wiki/Bernoulli_trial, lead section
About this page
Tag0PHC9FE2V5
URIm2://0PHC9FE2V5
Aliasesbinomial-trial
Kindconcept
WritingW0 stub
MSC60A05
SpecializesRandom experiment
UsesRandom experiment
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