diff --git a/generic/views.py b/generic/views.py
index 9e0c6e63..8bd44321 100644
--- a/generic/views.py
+++ b/generic/views.py
@@ -2131,8 +2131,11 @@ class ExamViews(View, LoginRequiredMixin):
         else:
             #Exclude very low scores from statistics
             lower_score_bound = max_score / 5
-
-            mean = statistics.mean([i for i in user_scores_list if i > lower_score_bound])
+            bounded_scores = [i for i in user_scores_list if i > lower_score_bound]
+            if bounded_scores:
+                mean = statistics.mean(bounded_scores)
+            else:
+                mean = statistics.mean(user_scores_list)
             median = statistics.median(user_scores_list)
             try:
                 mode = statistics.mode(user_scores_list)