Update EnumeratedDistribution.java
Fix typo in description
@@ -45,7 +45,7 @@ import org.apache.commons.math4.util.Pair;
* contain null values. The pmf created by the constructor will combine probabilities of equal values and
* will treat null values as equal. For example, if the list of pairs &lt;"dog", 0.2&gt;, &lt;null, 0.1&gt;,
* &lt;"pig", 0.2&gt;, &lt;"dog", 0.1&gt;, &lt;null, 0.4&gt; is provided to the constructor, the resulting
- * pmf will assign mass of 0.5 to null, 0.3 to "dog" and 0.2 to null.</p>
+ * pmf will assign mass of 0.5 to null, 0.3 to "dog" and 0.2 to pig.</p>
*
* @param <T> type of the elements in the sample space.
* @since 3.2
