Definition:Event/Occurrence/Impossibility

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Definition

Let the probability space of an experiment $\EE$ be $\struct {\Omega, \Sigma, \Pr}$.

Let $A \in \Sigma$ be an event of $\EE$ whose probability of occurring is equal to $0$.

Then $A$ is described as impossible.

That is, it is an impossibility for $A$ to occur.


Also see


Sources