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4. El tiempo promedio para leer un peri6dico es de 48 mi- nutos, la desviaci6n estndar es de 16 minutos. Si los tiempos de

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4. El tiempo promedio para leer un peri6dico es de 48 mi- nutos, la desviaci6n estndar es de 16 minutos. Si los tiempos de lectura tienen distribuci6n normal: a) b) c) iCul es la probabilidad de que una persona tarde al menos 65 minutos en leer el peri6dico? iCul es la probabilidad de que no tarde ms de 35 minutos? iCunto tiempo les toma a 10% de las personas que ms se tardan en leer el peri6dico?

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