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5. Las calificaciones de 10 aspirantes presentados a un examen para contratacin laboral, se distribuye normalmente con media 6,55 y varianza 4. a) Calcule

5. Las calificaciones de 10 aspirantes presentados a un examen para contratacin laboral, se distribuye normalmente con media 6,55 y varianza 4. a) Calcule y grafique la probabilidad de que un aspirante obtenga ms de 8 puntos. b) Determine la proporcin de aspirantes con calificaciones inferiores a 5 puntos. (Grfica)

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