To be honest, it requires more effort by the student to fail a course than to pass a course. The reason being that a majority part of the grading system is mostly qualitative. This means that if a student completes his assignments, takes part in his group projects and actively participates in a lecture will never fail a subject. The term exams constitute very less and even if a student scores a 0 in his term exams, provided he is an active participant in the rest of the grading schemes, will still not receive even a D. The students suffer mostly because of the lack of enough attendance (which leads to a grade drop) and lack of listening and participation in a course.