<p><a href="https://stats.meta.stackexchange.com/questions/5362/should-we-have-a-stratified-sampling-tag?noredirect=1#comment16326_5362">mdewey</a> points to the <a href="https://stats.stackexchange.com/questions/tagged/stratification" class="post-tag" title="show questions tagged &#39;stratification&#39;" rel="tag">stratification</a> tag, which is all we need.</p>
