> When people’s average perceptions of group sizes are compared to actual population estimates, an intriguing pattern emerges: Americans tend to vastly overestimate the size of minority groups. This holds for sexual minorities, including the proportion of gays and lesbians (estimate: 30%, true: 3%), bisexuals (estimate: 29%, true: 4%), and people who are transgender (estimate: 21%, true: 0.6%).<p>> It also applies to religious minorities, such as Muslim Americans (estimate: 27%, true: 1%) and Jewish Americans (estimate: 30%, true: 2%). And we find the same sorts of overestimates for racial and ethnic minorities, such as Native Americans (estimate: 27%, true: 1%), Asian Americans (estimate: 29%, true: 6%), and Black Americans (estimate: 41%, true: 12%).<p>From some quick arithmetic - their "average" survey respondent seems to be estimating that "normal" heterosexuals are only (100% - 30% - 29% - 21% =) 20% of the population. And that whites are far less than 0% of the population (similar arithmetic, and note that the figures in the quote do not include Latinos).<p>Maybe change the the title to "Mere words cannot express how bad Americans are at math."