I think it's something like this: let's say that I'm standing as part of a group of 20 naked white boys. Oh and we are all hot. 1 of us would be huge (10 or more inches), 2 or 3 others would be in the 8-9 inch range, 3 or 4 would be in the 7-8 inch range, 4 or 5 would be average (5 to 6 inches)...