add sortable candidade score tables

generic/templates/generic/exam_scores_base.html

@@ -39,16 +39,17 @@
 
     </div>
     <div id="stats-plot">{{plot|safe}}</div>
-    <div id="stats-block">
+    <div id="stats-block" title="low scores (<20% max) are excluded from statistics">
         <h3>Stats</h3>
         Candidates: {{cids|length}}<br />
         Questions: <span id="question-number">{{question_number}}</span><br />
         Available marks: {{max_score}}<br />
-        Mean: {{mean}}, Median {{median}}, Mode {{mode}}
+        Mean: {{mean}}, Median {{median}}, Mode {{mode}}<br />
+        Top score: {{exam.stats_max}}
 
     </div>
     <div>
-        <table class="table table-dark table-striped table-hover table-sm cid-score-table">
+        <table class="table table-dark table-striped table-hover table-sm cid-score-table sortable">
             <tr>
                 <th>Candidate ID</th>
                 <th>Score</th>

generic/views.py

@@ -2133,9 +2133,8 @@ class ExamViews(View, LoginRequiredMixin):
             lower_score_bound = max_score / 5
             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)
+                user_Scores_list = bounded_scores
+            mean = statistics.mean(user_scores_list)
             median = statistics.median(user_scores_list)
             try:
                 mode = statistics.mode(user_scores_list)