The averages are basically pointless. They might as well publish average average book lengths for categories on Amazon. Want a young adult novel? Average price 4ยข per page! Oh you want a specific novel? Sorry we advertise averages only.
What you'll actually get is determined by factors entirely out of their control. Whether that's an install engineer using a reel of Cat5e because that's what was in the truck even though the work order said crappy Category 3 phone cable would do, or even the neighbours are all using the most expensive package and that causes electrical interference that reduces everybody's bandwidth.
You can measure your actual characteristics, and the ISP will offer to do a half decent estimate of that, that's useful to at least decide which service to buy but the average is essentially worthless.
What you'll actually get is determined by factors entirely out of their control. Whether that's an install engineer using a reel of Cat5e because that's what was in the truck even though the work order said crappy Category 3 phone cable would do, or even the neighbours are all using the most expensive package and that causes electrical interference that reduces everybody's bandwidth.
You can measure your actual characteristics, and the ISP will offer to do a half decent estimate of that, that's useful to at least decide which service to buy but the average is essentially worthless.