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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 109<br />

✬<br />

Za dogodke A, B in C velja:<br />

✫<br />

P (A ∪ B ∪ C) = P (A) + P (B) + P (C)<br />

− P (A ∩ B) − P (A ∩ C) − P (B ∩ C)<br />

+ P (A ∩ B ∩ C).<br />

Kako lahko to pravilo posploˇ<strong>si</strong>mo ˇse na več dogodkov?<br />

Namig: Pravilo o vključitvi in izključitvi za mnoˇzice A1, A2, . . . , An:<br />

+<br />

|A1 ∪ A2 ∪ · · · ∪ An| =<br />

n<br />

1≤i1

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