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Answers for “为什么当 AB ≠ ∅ 时,我们只能说事件“可能”独立,而不能说“一定”独立?”

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Understand why

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A non-empty intersection means the events can occur simultaneously, but it does not guarantee independence. If one event is a subset of the other, the occurrence of the first strictly dictates the occurrence of the second, creating strong dependence despite the non-empty intersection.

Conditions: Events A and B have a non-empty intersection (AB≠∅AB \neq \emptyset).; Event A is a subset of event B (A⊂BA \subset B).

Meet the concept

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The correct statement is that if the intersection of two events is nonempty (AB≠∅AB \neq \emptyset), then the two events may be independent.

Conditions: A and B are any two events in a random experiment.

Meet the concept

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If the intersection of two events is nonempty, it means they can occur simultaneously. However, this only means they might possibly be independent; it does not guarantee independence, as strong dependencies like subset relationships can still exist.

Conditions: Events A and B have a non-empty intersection (AB≠∅AB \neq \emptyset).