Score distribution and curve for the first midterm:

Score     Letter grade   Number of Tests

52-60     A+	  	   19
47-51     A		   59
43-46     A-		   52
40-42     B+		   67
37-39     B		   66
34-36     B-		   50
31-33     C+		   59
28-30     C		   33
25-27     C-		   26
22-24     D+		   22
19-21     D		   7
16-18     D-		   6
0-15      F		   11