> In 4 years of working cases I would estimate 1 in 6 jurors are above the 85-115 IQ range of average intelligence, and maybe half are at or below the 100 line.
Maybe I'm missing the joke, but isn't IQ meant to follow a normal distribution with a mean/median of 100 with a standard deviation of 15, in which case you'd expect half of jurors to be below 100 and ~15% to be above 115, which is pretty close to what you've seen?