erseCumulativeProbability(1)</code>. In other words, this
 method must return
 <p><code>inf {x in R | P(X <= x) = 1}</code>.</p>
 <p>
 The upper bound of the support is always positive infinity no matter the parameters.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>upper bound of the support (always <code>Double.POSITIVE_INFINITY</code>)</dd></dl>
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<h4>isSupportLowerBoundInclusive<