QUESTION IMAGE
Question
there are 8 sophomores on the academic team. at the last competition, they each took the math test. their scores were 82%, 92%, 76%, 72%, 92%, 74%, 80%, and 78%. what was the median math score of the sophomores? 79% 82% 87% 92%
Step1: Ordenar los puntajes
72%, 74%, 76%, 78%, 80%, 82%, 92%, 92%
Step2: Encontrar la posición de la mediana
Como hay 8 datos ($n = 8$), la mediana es el promedio de los valores en las posiciones $\frac{n}{2}$ y $\frac{n}{2}+1$. $\frac{8}{2}=4$ y $\frac{8}{2}+1 = 5$.
Step3: Identificar los valores para calcular la mediana
Los valores en las posiciones 4 y 5 son 78% y 80% respectivamente.
Step4: Calcular la mediana
La mediana es $\frac{78 + 80}{2}=\frac{158}{2}=79\%$.
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A. 79%