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- Q1077800 subject Q5639957.
- Q1077800 subject Q7332865.
- Q1077800 abstract "In the theory of probability and statistics, a Bernoulli trial (or binomial trial) is a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted. It is named after Jacob Bernoulli, a Swiss mathematician of the 17th century.The mathematical formalization of the Bernoulli trial is known as the Bernoulli process. This article offers an elementary introduction to the concept, whereas the article on the Bernoulli process offers a more advanced treatment.Since a Bernoulli trial has only two possible outcomes, it can be framed as some "yes or no" question. For example:Is the top card of a shuffled deck an ace?Was the newborn child a girl?Therefore, success and failure are merely labels for the two outcomes, and should not be construed literally. The term "success" in this sense consists in the result meeting specified conditions, not in any moral judgement. More generally, given any probability space, for any event (set of outcomes), one can define a Bernoulli trial, corresponding to whether the event occurred or not (event or complementary event). Examples of Bernoulli trials include:Flipping a coin. In this context, obverse ("heads") conventionally denotes success and reverse ("tails") denotes failure. A fair coin has the probability of success 0.5 by definition. In this case there are exactly two outcomes.Rolling a die, where a six is "success" and everything else a "failure". In this case there are six outcomes, and the event is a six; the complementary event "not a six" corresponds to the other five outcomes.In conducting a political opinion poll, choosing a voter at random to ascertain whether that voter will vote "yes" in an upcoming referendum.↑ ↑".
- Q1077800 thumbnail Bernoulli_trial_progression.svg?width=300.
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- Q1077800 comment "In the theory of probability and statistics, a Bernoulli trial (or binomial trial) is a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted. It is named after Jacob Bernoulli, a Swiss mathematician of the 17th century.The mathematical formalization of the Bernoulli trial is known as the Bernoulli process.".
- Q1077800 label "Bernoulli trial".
- Q1077800 depiction Bernoulli_trial_progression.svg.