\begin{definition}[Definition:Bernoulli Trial/Bernoulli Variable]
Let $\EE = \struct {\Omega, \Sigma, \Pr}$ be a Bernoulli trial.
Let $X$ be a discrete random variable whose sample space is $\Omega$ in such a Bernoulli trial.
Then $X$ is known as a '''Bernoulli variable'''.
{{NamedforDef|Jacob Bernoulli|cat = Bernoulli, Jacob}}
\end{definition}