These differentials, he writes “places the average black at roughly the 16th percentile of the white IQ distribution.”
The new measure is a relative measure, pegged to (approximately) how much the 33rd percentile is spending on various things.
Really well, actually—in the 97th percentile on reading comprehension and the 87th in math.
A state in the 90th percentile (with the least amount of complaints filed) was given 20 points.
A state in the 90th percentile (with the least amount of hate crimes) was given 20 points.
In height he gained from the 25 percentile to the 40 percentile.
In other words, the lengths of the individual vectors denote the percentile rle that each night played in the total density.