<p>Yes, you can edit your question to clarify how it differs from the proposed duplicate; in fact, that's exactly you're expected to do when the answers aren't what you wanted. In this particular case, explain that you're asking about analytic solutions, &amp; not resampling-based estimators of out-of-sample performance.</p>
<p>(For what it's worth, bootstrapping is probably the best approach here, &amp; a valid answer to the original version of the question.)</p>
