 class="emphasis"><em>v2</em></span>
            are the first and second degrees of freedom parameters of the distribution,
            &#955;
is the non-centrality parameter, <span class="emphasis"><em>x</em></span> is the random
            variate, <span class="emphasis"><em>p</em></span> is the probability, and <span class="emphasis"><em>q =
            1-p</em></span>.
          </p>
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