Just a quick comment about averages .. the writer makes the argument that the average income of a college graduate is much higher than someone who did not go to

Just a quick comment about averages .. the writer makes the argument that the average income of a college graduate is much higher than someone who did not go to college but this is a very misleading statistic .. because the incomes of college graduates who got engineering, finance, medicine and law degrees have much higher incomes, but someone who got a history degree for example, does not.