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b. El jefe de recursos humanos de una empresa realiza un test de diez items a 105 aspirantes a un puesto, teniendo en cada item

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b. El jefe de recursos humanos de una empresa realiza un test de diez items a 105 aspirantes a un puesto, teniendo en cada item cuatro posibles respuestas, de las que solo una es correcta. Suponiendo que los aspirantes teniendo la misma probabilidad de responder. Se pide hallar las probabilidades para el aspirante: a) Conteste todos los items mal b) Conteste al menos cuatro items bien c) Conteste entre cuatro y seis items bien d) Conteste todos los items bien e) Conteste menos de tres items bien

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