Remarked here:
“A black person is seven times more likely to be killed by another black, than a white person is to be killed by anyone.”
The derivation is as follows.
The overall murder rate is 5.3 per 100,000.[1] Half — 2.65 — of those victims are black.[2] Blacks compose 1/8 of the population. That’s 2.65 murders per 12,500 blacks. To find the rate per 100,000 blacks, we must multiply 2.65 by 8. 2.65 × 8 = 21.20 murders per 100,000 blacks.
2.65 of the victims are non-black. Non-blacks compose 7/8 of the population. That’s 2.65 murders per 87,500 non-blacks. To find the rate per 100,000 non-blacks, we must multiply 2.65 by 8/7. 2.65 × 8/7 = 3.03 murders per 100,000 non-blacks.
Let us consider D.L. Hughley’s proposition that murder only occurs among the poor.
2/5 of blacks are poor. 1/8 of the population are black. So poor blacks are 2/5 × 1/8 = 2/40 of the population, or 1/20 or 5%. 5% of 100,000 is 5,000. 1/5 of non-blacks are poor. 7/8 of the population is non-black. So poor non-blacks are 1/5 × 7/8 = 7/40 of the population, or 17.5%. 17.5% of 100,000 is 17,500.
If murder were solely among poor people, 2.65 murders per 5,000 poor blacks would be 2.65 × 20 = 53 per 100,000 poor blacks. 2.65 murders per 17,500 poor non-blacks would be 2.65 x 40/7 = 15.14 per 100,000 poor non-blacks.
[1]Wikipedia: List of countries by intentional homicide rate
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