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The issue of national examinations has always been a matter of debate, because the scores are only used to determine the passing scores of students without follow-up. There are two main objectives in this study, the first is mapping the quality of schools in accordance with national exam scores, and the second is to describe the relationship between national exam scores and influential variables. The data used in this study were compiled by Idris in his dissertation and published in a book titled Critical Analysis of Education Quality in 2005. Data were analyzed with a biplot package based on Mathematica programming, by combining several national deviation scores and standards. Gabriels goodness and Pearsons correlation coefficient were each used to measure proportional compatibility in the biplot and school quality configuration in the biplot. Mapping the quality of schools according to national examination scores cannot be obtained by biplots with standard variables. National examination scores, which are transformed with 1.5 standard deviations, will show the suitability of the rankings, and the biplot correctly displays all influential variables that have a very significant positive correlation. Expanding the scope of this study and using more recent data are recommended for further studies.