Originally Posted by
kutter
I am too lazy to dig out the numbers but just an anecdotal look at who did not report the crime statistics reflects a large percentage of the population in the US since it is almost all densely populated areas, so to say that the missing 17% is not significant is not accurate if it reflects something like 40% of the US population, that is just a guess, but I bet it is not that far off.
Most of the time I would agree that 83% is a reasonable number to obtain a mean average, but in this case I think the locations/populations that did not report skew the numbers and probably pretty dramatically.