…And if it weren’t for that one joke by Hannibal, Bill Cosby would be very uncontroversial.
I think he is trying to say something like “non-zero skew”, but really, he just means “I subscribe to race science, but only for the articles”.
I think you’re being too generous. What they wanted to say is “There are genetic traits associated with intelligence.” However, not inserting probability distributions in every fucking sentence is a class 2 misdemeanor in Rat circles, hence what was written.