  In this paper we want to find a statistical rule that assigns a passing or
failing grade to students who undertook at least three exams out of four in a
national exam, instead of completely dismissing them students. While it is
cruel to declare them as failing, especially if the reason for their absence it
not intentional, they should have demonstrated enough merit in the three exams
taken to deserve a chance to be declared passing. We use a special
classification method and nearest neighbors methods based on the average grade
and on the most modal grade to build a statistical rule in a supervised
learning process. The study is built on the national GABECE educational data
which is a considerable data covering seven years and all the six regions of
the Gambia.
