Consider a probability model for which the sample space (i.e., the set of possible outcomes ω) is the nonnegative real axis: Ω = [0,∞). For any positive integer n, let An be the event {ω ∈ Ω : ω ≥ n}, i.e., the interval [n, ∞). Give a rigorous proof (justifying steps using the axioms of probability, whenever appropriate) that limn→∞ P(An) = 0.

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Consider a probability model for which the sample space (i.e., the set of possible outcomes ω) is the nonnegative real axis: Ω = [0,∞). For any positive integer n, let An be the event {ω ∈ Ω : ω ≥ n}, i.e., the interval [n, ∞). Give a rigorous proof (justifying steps using the axioms of probability, whenever appropriate) that limn→∞ P(An) = 0.

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