Introduction to Probability · Problem 4.1.61

Conditional Probability — Grinstead & Snell

Mathematics — Probability · attraction-exhaustive-events

Problem

Prove that if B1,B2,…,BnB_1, B_2, \ldots, B_n are mutually disjoint and collectively exhaustive, and if AA attracts some BiB_i, then AA must repel some BjB_j.

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