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Statistika (za biologe, 2.dio) - Pmf

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Matematičko očekivanje<br />

Ako je X sl. varijabla tako da<br />

�<br />

a1<br />

X ∼<br />

p1<br />

a2<br />

p2<br />

a3<br />

p3<br />

�<br />

. . .<br />

.<br />

. . .<br />

matematičko očekivanje definiramo kao broj<br />

E X = E(X) = �<br />

i<br />

aipi .

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