Grades are assigned as follows:
Each student is assigned a percentage score, where 80% of the
grade comes from homework assignments and 20% comes from the
final exam grade.
To convert from scores to grade points, we use a three-point
The median score maps to a grade of 3.0
Half of the median score maps to a grade of 0.8.
The 95th percentile score maps to a grade of 4.0.