One wonders what Marty G from the Standard would make of this graph.
The New York Times Economix blog offers us the above graph, showing that kids from higher income families get higher average SAT scores. Clearly it's another example of the unfair advantages that the wealthy get in our society. Just because their parents are wealthy kids get higher SAT scores. It is obvious that government intervention is needed to equalise incomes and SAT scores at the same time.
(HT: Greg Mankiw)
Update: For more on this issue see here and here.