Country population
Inside the question engineOpen the field notes
Country pairs are matched by total population. The later the question, the closer the population gap becomes.
About the quiz: Country population
This quiz tests your feel for demographics: from a pair of countries you pick the one where more people live. A country's size on the map helps little here, because large areas can be sparsely populated and small ones very crowded.
How are the questions built?
Each round has 10 questions. Pairs are drawn from 196 countries and territories that have verified data and an outline on the map. The population gap between the answers shrinks at each stage: from 50% to 150% in the first questions to only 2% to 8% in the last ones.
Where does the data come from?
Population comes from the World Bank (indicator SP.POP.TOTL), which is based on UN Population Division data and national statistical offices.
A fact from the data
The most populous countries in the data are India (1,463,865,525), China (1,406,585,000) and the United States (341,784,857).