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> This metric is also a proxy for living in a violent environment.

Probably, probably not. The probabilities of witnessing someone being shot is extremely low in both environments. If amount of people who are living in violent environment is much lower, it may be that a person who witnessed someone being shot is more probable from a good environment.

https://www.anesi.com/bayes.htm

https://www.youtube.com/watch?v=HZGCoVF3YvM




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