I did not intend you to feel intimidated or patronised, so please try to be less aggressive. — fdrake
A random variable is a mapping from a collection of possible events and rules for combining them (called a sigma algebra) to a set of values it may take. More formally, a random variable is a measureable mapping from a probability space to a set of values it can take — fdrake
the frequency of possible outcomes from a repeated random event. — Jeremiah
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