Coles Stanley
05/03/2024 · Junior High School

What happens to the median of the data set \( \{2,4,5,6,8,2,5,6\} \) if the number 10 is added to the data set? O) The median does not change. O) The median increases by 2 . Oa The median decreases by C. 25 . od The median increases by 1 .

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Primero, calculemos la mediana del conjunto de datos original \( \{2, 4, 5, 6, 8, 2, 5, 6\} \). 1. Ordenamos el conjunto de datos: \( \{2, 2, 4, 5, 5, 6, 6, 8\} \). 2. Dado que hay 8 números (un número par), la mediana se calcula como el promedio de los dos números del medio. Los dos números del medio son el cuarto y el quinto números: 5 y 5. 3. La mediana es \( \frac{5 + 5}{2} = 5 \). Ahora, añadimos el número 10 al conjunto de datos, lo que nos da \( \{2, 2, 4, 5, 5, 6, 6, 8, 10\} \). 1. Ordenamos el nuevo conjunto de datos: \( \{2, 2, 4, 5, 5, 6, 6, 8, 10\} \). 2. Ahora hay 9 números (un número impar), por lo que la mediana es el número del medio, que es el quinto número: 5. Comparando las dos medianas, vemos que la mediana original era 5 y la nueva mediana también es 5. Por lo tanto, la respuesta es: O) La mediana no cambia.

Quick Answer

La mediana no cambia.
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