[learc83]

Black Americans are 2 to 3 times more likely to live below the poverty line than white Americans, and the median white household makes about 1.5 times more money than the median black household.

But black Americans are about 8 times more likely to commit a violent crime, and about 6 times more likely to be the victim of a violent crime.

I've seen some statistics that show at least a portion could be accounted for by controlling for the increased percentage of black single mothers.