Brazil has ~5500 municipalities. Everybody takes a scholastic test every year, sample size was 8.6M in 2016. So we calculate White% population and average test score. Looks like this.pic.twitter.com/W2eLtv0MrF
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Some large social discrepancies are hardly caused by intelligence, e.g., urban vs rural, close to major cities vs not. You should control those.
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