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Mathematics, 25.05.2021 20:20 Stetson02

En una prueba de aptitud académica se evaluaron a “n” estudiantes y las notas obtenidas se clasificaron en una tabla de distribución de frecuencias como se muestra a continuación. Marca de Clase 45 55 65 75 85 Frecuencias Relativas K/50 3k/100 2k/25 3k/50 /100 ¿Qué porcentaje de estudiantes obtuvieron una nota menor que 65 puntos o igual que 85 puntos?

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