Final answer:
Over half of Canada's population lives in Ontario due to its economic opportunities, temperate climate, and proximity to the U.S.
Step-by-step explanation:
The region where more than half of the people in Canada live is Ontario, which is the most populous province, containing about 39 percent of the nation's total population. Alongside Ontario, Quebec is the second-most populous province, home to about 23 percent of Canadians. These two regions together encompass the majority of the population, with Ontario being particularly dominant. Factors contributing to this demographic concentration include the region's economic opportunities, proximity to the United States, and more temperate climate suitable for agriculture and urban development.