Statistika (za biologe, 2.dio) - Pmf
Statistika (za biologe, 2.dio) - Pmf
Statistika (za biologe, 2.dio) - Pmf
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Primjer<br />
Ako bacamo dva novčića, pokus opisuje npr. Ω = {P P, P G, GP, GG}.<br />
Ako nas <strong>za</strong>nima broj pisama koji je pao, to je sl. varijabla <strong>za</strong>dana sa<br />
X(P P ) = 2, X(P G) = X(GP ) = 1, i X(GG) = 0. Ako je novčić<br />
nepristran, svi su elem. dogadjaji jednako vjerojatni. Tako da X ima sljedeći<br />
<strong>za</strong>kon razdiobe<br />
x 0 1 2<br />
P (X = x) 1/4 1/2 1/4
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