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Statistiques II

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Probabilités Exercices Lois de probabilités discrètes<br />

Variance d’une variable aléatoire<br />

Prix des quotidiens:<br />

x 2 FS 2.50 FS 3 FS<br />

P(X = x) 0.1 0.5 0.4<br />

A. Caboussat, HEG STAT <strong>II</strong>, 2011 25 / 29

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