The respondents represented a fairly average slice of the U.S. population, with about 29 percent holding a college degree and a median monthly average household income between $3, 000 and $3, 99
这些受访者代表了相当一部分美国人口的平均水平,其中百分之二十九的人拥有大学学历,家庭月平均收入在3000到3999美金之间。