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Se tiene una poblacin de 5 obreros calificados los cuales tienen los siguientes ingresos por laborar horas extra a la semana: $ 758, $618, $550,

Se tiene una poblacin de 5 obreros calificados los cuales tienen los siguientes ingresos por laborar horas extra a la semana: $ 758, $618, $550, $589, $720

Determinar el nmero de muestras posibles de tamao 3 sin reemplazo.

a) Calcular la Media de medias.

b) Calcular el Error estndar de la distribucin

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