Fix precision issue in EnumeratedRealDistributionTest.testCreateFromDoubles()

Author: tongxin97

src/test/java/org/apache/commons/math4/distribution/EnumeratedRealDistributionTest.java

@@ -248,7 +248,7 @@ public void testIssue1065() {
     public void testCreateFromDoubles() {
         final double[] data = new double[] {0, 1, 1, 2, 2, 2};
         EnumeratedRealDistribution distribution = new EnumeratedRealDistribution(data);
-        assertEquals(0.5, distribution.probability(2), 0);
+        assertEquals(0.5, distribution.probability(2), 1e-15);
         assertEquals(0.5, distribution.cumulativeProbability(1), 0);
     }
 }