diff --git a/src/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java b/src/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java
index 984d56da1..ffa1af94d 100644
--- a/src/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java
+++ b/src/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java
@@ -104,7 +104,7 @@ public class ChiSquareTestImpl implements UnknownDistributionChiSquareTest {
      * expected and observed counts are equal.</p>
      * 
      * @param observed array of observed frequency counts
-     * @param expected array of exptected frequency counts
+     * @param expected array of expected frequency counts
      * @return p-value
      * @throws IllegalArgumentException if preconditions are not met
      * @throws MathException if an error occurs computing the p-value
@@ -123,7 +123,7 @@ public class ChiSquareTestImpl implements UnknownDistributionChiSquareTest {
      * expected and observed counts are equal.</p>
      * 
      * @param observed array of observed frequency counts
-     * @param expected array of exptected frequency counts
+     * @param expected array of expected frequency counts
      * @param alpha significance level of the test
      * @return true iff null hypothesis can be rejected with confidence
      * 1 - alpha
diff --git a/src/test/org/apache/commons/math/distribution/IntegerDistributionAbstractTest.java b/src/test/org/apache/commons/math/distribution/IntegerDistributionAbstractTest.java
index 192f76f48..664d7b8af 100644
--- a/src/test/org/apache/commons/math/distribution/IntegerDistributionAbstractTest.java
+++ b/src/test/org/apache/commons/math/distribution/IntegerDistributionAbstractTest.java
@@ -133,7 +133,7 @@ public abstract class IntegerDistributionAbstractTest extends TestCase {
     //-------------------- Verification methods -------------------------------
     
     /**
-     * Verifies that probability density calculations match exptected values
+     * Verifies that probability density calculations match expected values
      * using current test instance data
      */
     protected void verifyDensities() throws Exception {
@@ -145,7 +145,7 @@ public abstract class IntegerDistributionAbstractTest extends TestCase {
     }
     
     /**
-     * Verifies that cumulative probability density calculations match exptected values
+     * Verifies that cumulative probability density calculations match expected values
      * using current test instance data
      */   
     protected void verifyCumulativeProbabilities() throws Exception {
@@ -157,7 +157,7 @@ public abstract class IntegerDistributionAbstractTest extends TestCase {
     }
     
     /**
-     * Verifies that inverse cumulative probability density calculations match exptected values
+     * Verifies that inverse cumulative probability density calculations match expected values
      * using current test instance data
      */
     protected void verifyInverseCumulativeProbabilities() throws Exception {
@@ -171,7 +171,7 @@ public abstract class IntegerDistributionAbstractTest extends TestCase {
     //------------------------ Default test cases -----------------------------
 
     /**
-     * Verifies that probability density calculations match exptected values
+     * Verifies that probability density calculations match expected values
      * using default test instance data
      */
     public void testDensities() throws Exception {
@@ -179,7 +179,7 @@ public abstract class IntegerDistributionAbstractTest extends TestCase {
     }
     
     /**
-     * Verifies that cumulative probability density calculations match exptected values
+     * Verifies that cumulative probability density calculations match expected values
      * using default test instance data
      */
     public void testCumulativeProbabilities() throws Exception {
@@ -187,7 +187,7 @@ public abstract class IntegerDistributionAbstractTest extends TestCase {
     }
     
     /**
-     * Verifies that inverse cumulative probability density calculations match exptected values
+     * Verifies that inverse cumulative probability density calculations match expected values
      * using default test instance data
      */
     public void testInverseCumulativeProbabilities() throws Exception {
diff --git a/src/test/org/apache/commons/math/stat/descriptive/ListUnivariateImpl.java b/src/test/org/apache/commons/math/stat/descriptive/ListUnivariateImpl.java
index b83a5ca0c..348c1f056 100644
--- a/src/test/org/apache/commons/math/stat/descriptive/ListUnivariateImpl.java
+++ b/src/test/org/apache/commons/math/stat/descriptive/ListUnivariateImpl.java
@@ -36,7 +36,7 @@ public class ListUnivariateImpl extends DescriptiveStatistics implements Seriali
     
     /**
      * Holds a reference to a list - GENERICs are going to make
-     * out lives easier here as we could only accept List<Number>
+     * our lives easier here as we could only accept List<Number>
      */
     protected List list;