If we're looking at SAT scores: in 2013, about 50,000 white students scored 700 or above in the math SAT, as did about 49,000 Asian students. Google's statistics at http://www.google.com/diversity/ indicate they have about twice as many white employees as Asian employees overall, and about three times as many in leadership. What gives?
You can say that 650+ math SAT score is more realistica assesment of average Google talent. There are 78400 Asians with 650+ score and 133440 whites with 650+ score in math. There are only 4200 blacks with 650+ score. Numbers pretty much align with Google diversity report.
