Análise das questões de estatística e probabilidade no Exame Nacional do Ensino Médio

Abstract

This paper presents an analysis of issues involving statistics and probability on the evidence of the National Secondary Education Examination. We analyzed two races of 2009, two 2010 and one 2011. The 140 selected questions were analyzed according to the degree of difficulty, tested the skills and competencies and knowledge in that area belonged. It was observed that, from 2009 to 2010, there was a reduction in the number of issues requiring statistical knowledge, but in 2011 there was an increase. This underscores the need for the school to devote special attention to these issues, emphasizing to students that the study of probability and statistics is essential for people to analyze the cost of living indices, conduct polls, choosing samples and make decisions in various situations of everyday life.