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Answers for “贝叶斯定理如何应用于筛查示例?”

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In a sample space of nine equally likely outcomes, let event A contain 5 elements and event B contain 6 elements, with their intersection containing 2 elements. The conditional probability P(A∣B)P(A \mid B) is calculated directly as the size of the intersection divided by the size of B: 2/6=1/32/6 = 1/3.

Conditions: The sample space has nine equally likely outcomes.; Event A has 5 elements, Event B has 6 elements, and A∩BA \cap B has 2 elements.