lass="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="idm45106001775616-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="mean.html" title="Class template mean">mean</a><span class="special">&lt;</span> <span class="identifier">T</span> <span class="special">&gt;</span> <sp