Final answer:
Gambling addiction is a serious issue in Canada, and approximately 2.8% of Canadians have moderate to severe gambling problems.
Step-by-step explanation:
The question is asking about the number of Canadians with a serious gambling problem. This falls under the subject of Social Studies because it involves understanding the behavior and impact of gambling in society.
Unfortunately, I do not have the specific data on the number of Canadians with a serious gambling problem. However, I can provide some general information. Gambling addiction is a serious issue worldwide, and Canada is no exception. According to a report by the Centre for Addiction and Mental Health, approximately 2.8% of Canadians have moderate to severe gambling problems.
It's important to note that this percentage represents those with a moderate to severe problem and does not include individuals with a milder form of gambling addiction. Additionally, the prevalence of gambling addiction can vary among different provinces and territories.