Test 2: median was 74
  
Recall: Effective Classroom Engagement: 5%, Problem Sets: 30%, Exams: 50% and the Final Research Presentations: 15% (must participate to pass).  As per the syllabus:
Exams 50%
To encourage exams as a learning experience a couple extra points will be 
granted for complete (and correct) test corrections. 
You can possibly add: 
          Maximum of {+3 or +15% 
points you missed} 
to your test grade if you completely correct your test
(replace all of your incorrect responses with correct answers) 
I want you to understand the material and I am happy to help in office 
hours or online!
Turn in your original test too.