Ex2.1p.34 Gujarati 2000

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Exercício 2.1 da página 34 GUJARATI, 2000 3ª Edição

Taxa de retorno X (%) -20 -10 10 25 30

Probabilidades pi 0.1 0.15 0.45 0.25 0.05

E(X) = 8.75 σ^2(X) = var(X) = 224.6875% σ(X) = 14.9895797139213 ou 14,99% V(X) = 1.71314285714286 ou 171.31% S(X) = 0.289364214917964 ou 0,2894 C(X) = 2.2678016330052

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