<p>Given that we also have a tag for <a href="https://stats.stackexchange.com/questions/tagged/distributions" class="post-tag" title="show questions tagged &#39;distributions&#39;" rel="tag">distributions</a>, users can always amend a generic tag like <a href="https://stats.stackexchange.com/questions/tagged/chi-squared" class="post-tag" title="show questions tagged &#39;chi-squared&#39;" rel="tag">chi-squared</a> in order to avoid ambiguities. For instance, a question concerning the chi-squared test can equally be used together with <a href="https://stats.stackexchange.com/questions/tagged/inference" class="post-tag" title="show questions tagged &#39;inference&#39;" rel="tag">inference</a> to show that the question is not about the distribution. For this kind of tag I think it's beneficial to not have an additional one for the distribution itself. Otherwise we might unnecessarily inflate the number of tags even though existing tags can be used in combination for the same purpose. After all this flexibility is implied by allowing the use of multiple tags per question.</p>
