><img src="../../../images/accumulators//form_3.png"></span> being the total number of sample and <span class="inlinemediaobject"><img src="../../../images/accumulators//form_5.png"></span> the sum of all <span class="inlinemediaobject"><img src="../../../images/accumulators//form_3.png"></span> weights:</p>
<div class="equation">
<a name="id-1.3.2.6.3.57.52.4.7.1"></a><p class="title"><b>Equation&#160;1.40.&#160;</b></p>
<div class="equation-contents"><div class="mediaobject" align="center"><img src="../..