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<h4>probability</h4>
<pre>public&nbsp;double&nbsp;probability(int&nbsp;x)</pre>
<div class="block">For a random variable <code>X</code> whose values are distributed according
 to this distribution, this method returns <code>P(X = x)</code>. In other
 words, this method represents the probability mass function (PMF)
 for the distribution.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>x</code> - the point at which the PMF is evaluated</dd>
<dt><span class="stron