El tiempo que tarda un comunicador para realizar una entrevista de 10 preguntas en un programa de televisión, puede considerarse una variable aleatoria normal con un promedio de 30 minutos y una desviación estándar de 5 minutos. Para un entrevistado que va iniciar una entrevista con dicho comunicador; Calcular:

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Las calificaciones del primera prueba parcial de un grupo de estudiantes puede considerarse una Variable Aleatoria Normal con un promedio 10.6 puntos y una desviación estándar de 3.2 puntos. Para esta población de estudiantes:

El tiempo que tarda un comunicador para realizar una entrevista de 10 preguntas en un programa de televisión, puede considerarse una variable aleatoria normal con un promedio de 30 minutos y una desviación estándar de 5 minutos. Para un entrevistado que va iniciar una entrevista con dicho comunicador; Calcular:

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