Americans also estimate that 30% of the population lives in New York City (https://today.yougov.com/politics/articles/41556-americans-misestimate-small-subgroup

Americans also estimate that 30% of the population lives in New York City (https://today.yougov.com/politics/articles/41556-americans-misestimate-small-subgroups-population https://today.yougov.com/politics/articles/41556-americans-m...). I think most people just don't have a numerical intuition for percentages, and don't necessarily intend for a guess of 31% to mean "I think the foreign aid budget is equal to the federal budget times 0.31."