By: Mike Johnson Jr
Date Created: Aug. 6, 2016, 5:43 p.m.
The diversity ratio in this study is based on the Simpson's Diversity Index, where we rank each county on the probability of randomly selecting two people and getting two people of different races (ecological entropy): D =1 - ∑(n/N)2 where n = number of people of a given race and N is the total number of people of all races. Where does your county rank? Let us know in the comments