<p>@bluebayou,
</p>
<p>You appear to be confused about what a “statistic” is. Given ANY sample, you can derive a"statistic(s)". It doesn’t matter how flawed the sample may be, you STILL have statistics. The sample may be biased, or maybe too small (in which case you can use non-parametric techniques to generate statistics) but the term “statistic” is still valid. And yes, I did take AP Stats :)</p>