Comment by kjs3

You are correct. See: https://www.airuniversity.af.edu/Portals/10/AUPress/Books/B_...

The money quote is:

  Conventionally the air forces designated as "the target area" a
  circle having a radius of 1000 feet around the aiming point of
  attack . While accuracy improved during the war, Survey studies
  show that, in the over-all, only about 20% of the bombs aimed at
  precision targets fell within this target area.

I went down a rabbit hole and researched this a bit when we built an EU datacenter a couple of decades ago.