diff --git a/main/exercice/exercise.class.php b/main/exercice/exercise.class.php
index 9ddf1b5184..01d4b947bb 100644
--- a/main/exercice/exercise.class.php
+++ b/main/exercice/exercise.class.php
@@ -794,7 +794,6 @@ class Exercise
                 if ($addAll) {
                     $numberOfQuestions = 999;
                 }
-
                 if (!empty($numberOfQuestions)) {
                     $elements = Testcategory::getNElementsFromArray($categoryQuestionList, $numberOfQuestions, $randomizeQuestions);
                 if (!empty($elements)) {
@@ -836,7 +835,6 @@ class Exercise
         $courseId = $this->course_id;
 
         // Setting category order.
-
         switch ($questionSelectionType) {
             case EX_Q_SELECTION_ORDERED: // 1
             case EX_Q_SELECTION_RANDOM:  // 2
diff --git a/main/inc/Entity/Repository/TrackExerciseRepository.php b/main/inc/Entity/Repository/TrackExerciseRepository.php
index fb1ec71ddc..f62fd5e3ab 100644
--- a/main/inc/Entity/Repository/TrackExerciseRepository.php
+++ b/main/inc/Entity/Repository/TrackExerciseRepository.php
@@ -14,6 +14,8 @@ class TrackExerciseRepository extends EntityRepository
 {
     /**
      * @param int $exerciseId
+     * @param int $courseId
+     * @param  int $sessionId
      * @return array
      */
     public function getAverageScorePerForm($exerciseId, $courseId, $sessionId)
@@ -35,6 +37,13 @@ class TrackExerciseRepository extends EntityRepository
         return $qb->getQuery()->getArrayResult();
     }
 
+    /**
+     * @param int $exerciseId
+     * @param int $courseId
+     * @param int $sessionId
+     * @param int $distributionId
+     * @return array
+     */
     public function getResults($exerciseId, $courseId, $sessionId, $distributionId)
     {
         $qb = $this->createQueryBuilder('e');
diff --git a/main/template/minedu/admin/questionmanager/exercise_distribution/stats.tpl b/main/template/minedu/admin/questionmanager/exercise_distribution/stats.tpl
index e94e5b3e0f..09c4c63e62 100644
--- a/main/template/minedu/admin/questionmanager/exercise_distribution/stats.tpl
+++ b/main/template/minedu/admin/questionmanager/exercise_distribution/stats.tpl
@@ -13,9 +13,8 @@
                 <td>
                     {{ item.title }}
                 </td>
-
                 <td>
-                    {{ item.average }}
+                    {{ item.average | number_format(3) }}
                 </td>
             </tr>
         {% endfor %}
diff --git a/src/ChamiloLMS/Controller/Admin/QuestionManager/ExerciseDistributionController.php b/src/ChamiloLMS/Controller/Admin/QuestionManager/ExerciseDistributionController.php
index cd1ed55d26..651c71e449 100644
--- a/src/ChamiloLMS/Controller/Admin/QuestionManager/ExerciseDistributionController.php
+++ b/src/ChamiloLMS/Controller/Admin/QuestionManager/ExerciseDistributionController.php
@@ -33,9 +33,9 @@ class ExerciseDistributionController extends CommonController
         $em = $this->getManager();
         $course = $this->getCourse();
 
-        if (empty($course)) {
-          //  throw new \Exception('Could not get a valid course.');
-        }
+        /*if (empty($course)) {
+            throw new \Exception('Could not get a valid course.');
+        }*/
 
         $criteria = array('exerciseId' => $exerciseId);
         $quizDistributionList = $this->getRepository()->findBy($criteria);