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Un psiclogo aplica un examen de conocimientos generales para ingresar al bachillerato, que consta de 270 preguntas a 70 candidatos a ingresar a dicho nivel

Un psiclogo aplica un examen de conocimientos generales para ingresar al bachillerato, que consta de 270 preguntas a 70 candidatos a ingresar a dicho nivel con la concentracin en justicia criminal. Con los resultados de las pruebas que se presentan ms adelante considerando que los mismos representan la cantidad de preguntas contestadas correctamente de cada candidato, calcule las medidas de tendencia central para datos agrupados (media, moda, mediana) primero desarrollando una tabla de distribucin de frecuencias con 8 intervalos.

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