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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 134<br />

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Naloga iz pogojne verjetnosti<br />

Redko nalezljivo bolezen dobi ena oseba na 1000.<br />

Imamo dober, a ne popoln test za to bolezen:<br />

če ima neka oseba to bolezen, potem test to pokaˇze v 99% primerih,<br />

vendar pa test napačno označi tudi 2% zdravih pacientov za bolane.<br />

V Tvojem primeru je bil test pravkar pozitiven.<br />

Kakˇsna je verjetnost, da <strong>si</strong> zares dobili nalezljivo bolezen?<br />

Univerza v Ljubljani ▲<br />

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● ❙ ▲<br />

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☛ ✖<br />

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