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3-63 Un conjunto de 60 observaciones tiene una media de 66.8, una yarianza de 12.60 y una forma de distribucion desconocida. a) Entre que valores

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3-63 Un conjunto de 60 observaciones tiene una media de 66.8, una yarianza de 12.60 y una forma de distribucion desconocida. a) Entre que valores deberan caer al menos 75% de las observaciones, de acuerdo con el teorema de Chebyshey? . b) Si la distribucion es simetrica y con forma de campana, aproximadamente cyantas observaciones deberan encontrarse en el intervalo 59.7-73.9? c) Encuentro los resultados estandar para las siguientes observaciones tomadas de la distribucion: 61.45, 75.37, 84.65 y 51.50

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