Stop trying to make this a racial discussion a**h** when it isnt. It is an economic point not a racial point. The hispanic kids in the areas I mentioned grow up in good families with loving parents. I know many of them and have all the respect in the world for them. English is not the primary language spoken at home and education is not as highly valued. As for the asian kids, they grow up in families where education is valued above all else as it is in my household (BTW, I am not of asian decent though many of my clients are). The children and their parents typically speak english at home as a first language.
Looking at the data by ethnicity largely serves as a surrogate for household income in most areas around here. If the data was available by HH income you would see the same thing.