/dd>
<dt><span class="strong">Returns:</span></dt><dd>the maximum absolute error in inverse cumulative probability estimates</dd></dl>
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<h4>getNumericalMean</h4>
<pre>public&nbsp;double&nbsp;getNumericalMean()</pre>
<div class="block">Use this method to get the numerical value of the mean of this
 distribution.
 <p>
 For scale <code>k</code> and shape <code>α</code>, the mean is given by
 <ul>
 <li><code>