An experiment in which 
trials are made of an event, with probability 
of success in any given trial.
Bernoulli Trial
See also
Bernoulli Distribution, Coin Tossing, RunExplore with Wolfram|Alpha
References
Papoulis, A. "Bernoulli Trials." §3-2 in Probability, Random Variables, and Stochastic Processes, 2nd ed. New York: McGraw-Hill, pp. 57-63, 1984.Referenced on Wolfram|Alpha
Bernoulli TrialCite this as:
Weisstein, Eric W. "Bernoulli Trial." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/BernoulliTrial.html