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Definition

Random Variable

Probability Theory · probability.tex
Probability Space A random variable $X$ is a measurable function from the sample space $\Omega$ to $\R$ $$ X : \Omega \to \R $$ that is, the inverse of any Borel Set in $\R$ is $\mathcal{F}$-measurable: $$ X^{-1} (A) = \{\omega : X(\omega) \in A \} \in \mathcal{F} \quad \forall A \in \R $$
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flowchart LR classDef current fill:#6366f1,color:#fff,stroke:#4f46e5 n6af26769["Probability Space"] ne7ca7604["Random Variable"]:::current n6af26769 --> ne7ca7604 click n6af26769 "../objects/6af26769.html" "_self"