How to read this chart: The first column is your ID from the final exam, the second is your grade without taking the extra credit assignments into account, the third column is with the extra credit accounted for. As promised, the extra credit was used only to push up the letter grade of people who did those---the bars separating letter grades were computed based on the required work only. And the "<- X" next to the third column indicates the final grade for that person, when that grade was pushed up by the extra credit. (The mean was around 81... again! And I put it in the low B range). ID gr1 gr2 A+ ----------------------- A 30 99 99 61 99 113 <- A+ 38 98 98 15 98 98 46 97 97 25 96 97 68 96 96 83 95 95 64 95 95 69 95 95 8 95 108 <- A+ 4 95 95 48 95 98 ----------------------- A- 67 94 97 <- A 26 93 97 <- A 59 93 96 <- A 40 93 93 82 93 93 28 92 97 <- A 2 91 93 54 91 93 49 91 91 93 91 91 10 91 92 5 90 90 12 90 95 <- A ----------------------- B+ 32 89 91 <- A- 33 89 92 <- A- 14 89 91 <- A- 22 89 89 58 89 89 23 89 89 77 88 90 <- A- 44 88 88 53 88 92 <- A- 7 88 90 <- A- 0 88 88 66 87 87 34 87 87 29 87 87 70 87 89 55 87 91 <- A- 71 86 88 86 86 88 92 86 86 21 86 86 31 86 86 9 86 91 <- A- 37 86 90 <- A- 36 86 96 <- A 1 85 85 52 85 85 ---------------------- B 51 84 84 50 83 83 16 83 83 87 83 83 76 83 88 <- B+ 11 83 85 <- B+ 17 82 84 27 82 82 81 81 81 24 81 88 <- B+ 88 81 81 94 80 80 ---------------------- B- 43 79 79 3 79 79 20 78 78 72 78 78 39 78 79 80 77 77 41 77 89 <- B+ 79 77 77 13 77 79 91 77 77 78 76 76 74 76 76 57 76 76 63 76 76 45 76 79 62 75 75 ---------------------- C+ 6 74 75 <- B- 18 73 73 42 72 74 90 72 72 89 71 71 ---------------------- C 19 68 68 35 67 67 65 66 66 95 66 66 ---------------------- C- 85 60 60 ---------------------- D 73 61 61 47 51 51 75 28 28 ---------------------- F 60 0 0 84 0 0