这是耶鲁大学学杂费的统计表，如果家庭收入6万5到10万，平均每年只要付$6488, 如果家庭收入高于25万，每年则要付$50957. 也就是说收入是2到3倍的家庭，学杂费却要付8到10倍。
所以，哪类大学比较便宜，和每个家庭的年收入挂钩的，简单说哪个大学更便宜，并没有普遍意义。
Annual Income Range
Less than $65,000
Median Net Cost*
$4,450
Annual Income Range
$65,000-$100,000
Median Net Cost*
$6,488
Annual Income Range
$100,000-$150,000
Median Net Cost*
$15,352
Annual Income Range
$150,000-$200,000
Median Net Cost*
$29,953
Annual Income Range
$200,000-$250,000
Median Net Cost*
$43,015
Annual Income Range
Greater than $250,000**
Median Net Cost*
$50,957
