It is as accurate as is statistically possible. No other presentation of data can be more accurate unless there were studies where every motorcyclist in VA was interviewed about the frquency in which they ride and whether they know of people who ride without a license or a rgistered bike. In that case a motorcyclist can simply lie about the frequency in which he rides and would most likely lie about knowing people who rode illegally. My point is that you can debate the finer aspects of statistical data all day long because it is an endless circle of what ifs. I think what you're meaning to say is that the data has a small margin of error that accompanies all statistics.

An argument based on fallacy would imply that it contains no truth and this data though minorly flawed contains a sufficient amount of accuracy to prove my point.