<p>This has clearly caused a lot of confusion; it seems hard to be specific. However, I think perhaps this is a starting point:</p>

<blockquote>
  <p>If answering the question requires knowledge of statistics, ask it
  here. If it does not, ask it on SO.</p>
</blockquote>

<p>I think the division should be in terms of who is going to answer. I hang out here (and on English Language Learner and sometimes History) but on SO I almost exclusively <em>ask</em> questions rather than <em>answer</em> them. I am not a programmer. Some questions that are currently getting migrated to SO are ones I could answer - they involve <code>SAS</code> or <code>R</code> but really require someone to know statistics, not programming.</p>
