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La tabla siguiente muestra la distribucin de probabilidad de una variable aleatoria y. 198 Captulo 5 Distribuciones de probabilidad discreta y f( y) 2 0.20
La tabla siguiente muestra la distribucin de probabilidad de una variable aleatoria y. 198 Captulo 5 Distribuciones de probabilidad discreta
y f( y) 2 0.20 4 0.30 7 0.40 8 0.10
a. Calcule E(y).
b. Calcule Var(y) y .
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