Explain why the General Addition Rule P ( A or B ) = P ( A ) + P ( B ) - P ( A and B ) may be used even when A and B are mutually exclusive events.
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The General Addition Rule for any two events \(A\) and \(B\) is given by: \[ P(A \text{ or } B) = P(A) + P(B) - P(A \text{ and } B) \] Show more…
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