//form_14.png"></span> is given by the weighted mean of the</p>
<div class="equation">
<a name="id-1.3.2.6.3.57.52.4.3.1"></a><p class="title"><b>Equation&#160;1.38.&#160;</b></p>
<div class="equation-contents"><div class="mediaobject" align="center"><img src="../../../images/accumulators//form_10.png" align="middle"></div></div>
</div>
<p><br class="equation-break"></p>
<p>smallest samples (left tail) or the weighted mean of the</p>
<div class="equation">
<a name="id-1.3.2.6.3.57.52.4.5.1"></a><p class="ti