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En esta actividad deberás responder de acuerdo a lo que vas entendiendo del video.

Created by

Jennipher Ferreira
Jennipher Ferreira
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En esta actividad deberás responder de acuerdo a lo que vas entendiendo del video.

by Jennipher Ferreira
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1

¿Qué representan los valores de la frecuencia acumulada?

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2

En una tabla de datos agrupados, donde el total de datos es 143, ¿En qué posición se encuentra la mediana?

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3

En una tabla de datos agrupados la distribución de la frecuencia acumulada (desde el primer intervalo al último) es la siguiente: 15, 31, 58. 72 y 90, ¿Cuál de los siguientes sería el intervalo o clase mediana?

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Explicación

La mitad de 143 es 71,5 lo que no representa una posición. En estos casos se aproxima. También se puede sumar 1 al total de datos y luego calcular la mitad, siempre y cuando el tamaño de la muestra sea un valor impar, como en este caso.

El total de datos lo entrega el último valor de la frecuencia acumulada, y es 90. La mitad de 90 es 45 por lo tanto el valor de la frecuencia acumulada mayor o igual a 90 es 58.

 
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