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Bernoulli trial

In the theory of probability and statistics, a Bernoulli trial is an experiment whose outcome is random and can be either of two possible outcomes, called "success" and "failure." These last two words should not always be construed literally. Examples of Bernoulli trials include Mathematically, such a trial is modeled by a random variable which can take only two values, 0 and 1, with 1 being thought off as "success". If p is the probability of success, then the expected value of such a random variable is p and its standard deviation is √(p(1-p)).

A Bernoulli process consists of repeatedly performing independent but identical Bernoulli trials, for instance flipping a coin 10 times.