The CBC article discusses a Canada-wide survey which shows that “one in five Canadians experiences discrimination regularly or occasionally.”
The RLE has an interesting connection to November 2020 TOK Essay Prescribed Title #5. The “questions” in the Prescribed Title could be linked to the racial discrimination survey. A TOK on this Prescribed Title and this (or similar RLEs) could look at the wording of surveys / questionnaires and investigate how much they depend on existing or new knowledge.