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2) La varianza de los datos $6$ ; $4$ ; $8$ y $10$, es:
\nA) $3$
\nB) $4$
\nC) $5$
\nD) $6$
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\nPaso 1: Calcular el promedio o media aritmética de los datos (recuerda que es la suma de los datos dividido por el total de datos) | \n
\n [[0]] \n$\\overline{x}=$________ $=$ [[2]] \n[[1]] \n | \n
Paso 2: A cada dato le restamos el promedio y el valor obtenido lo elevamos al cuadrado: | \n
\n $($[[2]]$-6)^2=($[[3]]$)^2=$[[4]] \n$($[[2]]$-4)^2=($[[5]]$)^2=$[[6]] \n$($[[2]]$-8)^2=($[[7]]$)^2=$[[8]] \n$($[[2]]$-10)^2=($[[9]]$)^2=$[[10]] \n | \n
Paso 3: Los valores obtenidos en el paso 2 se promedian para así obtener la varianza $\\sigma^2$, es decir se suman y se divide por el total de valores obtenidos en el paso 2. | \n
\n [[4]]$+$[[6]]$+$[[8]]$+$[[10]] [[11]] \n$\\sigma^2=$ _______________________________________ $=$ _______ $=$ [[13]] \n[[12]] [[12]] \n | \n
Por lo tanto, la respuesta correcta es: [[14]]
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