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La cantidad diaria de caloras que consume una persona es una cantidad aleatoria variable que distribuye normal con un promedio de 2100 kcal y una

La cantidad diaria de caloras que consume una persona es una cantidad aleatoria variable que distribuye normal con un promedio de 2100 kcal y una varianza de 140625 Kcal Determine el tamao de muestra si sabe que el 6.681% de los grupos de n personas tienen un promedio superior a 2220 Kcal.

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