An exclusion* is a set of two or more courses that are not the same, but that have considerable overlap in content such that both may not count towards the requirements of your degree. Students are not normally permitted to enrol in a course that excludes one that they have already taken.
If you obtain permission to take a course that is an exclusion of another course(s) that you have taken, the grades in all excluded courses will contribute to your GPA, but only the course with the highest grade will count for credit.
For example: SOCY 211/3.0 and STAT 263/3.0 are exclusions.
*Exclusions are identified in the Academic Calendar course descriptions or in SOLUS in the following manner:
EXCLUSION: No more than 3.0 units from BIOL 243/3.0; ECON 250/3.0; GPHY 247/3.0; KNPE 251/3.0; POLS 385/3.0; PSYC 202/3.0; SOCY 211/3.0; STAT 263/3.0.