21-260: Differential Equations 2007 Spring Course Statistics Cumulative Average Cumulative Statistics Mean by Recitation Grade Cutoffs Grade Distribution Min (%) 1.43 Aroskar 73.21 A cutoff 81.00 =M + 0.57 Sd A's 55 27% Q1 (%) 67.8 Mean 72.88 Melsted 72.67 B cutoff 71.00 =M - 0.14 Sd B's 80 39% Q2 (%) 75.35 Sdev 14.12 Raja Ahmad 72.48 C cutoff 61.00 =M - 0.85 Sd C's 44 21% Q3 (%) 81.56 Siorpaes 73.42 D cutoff 47.33 =M - 1.81 Sd D's 17 8% Max (%) 95.23 R's 10 5% Homework Average Homework Statistics Mean by Recitation Grade Cutoffs Grade Distribution Min (%) 0 Aroskar 78.22 A cutoff 85 =M + 0.23 Sd A's 113 55% Q1 (%) 77.4 Mean 80.63 Melsted 80.97 B cutoff 75 =M - 0.31 Sd B's 43 21% Q2 (%) 85.91 Sdev 18.24 Raja Ahmad 80.33 C cutoff 65 =M - 0.86 Sd C's 23 11% Q3 (%) 92.25 Siorpaes 84.27 D cutoff 50 =M - 1.68 Sd D's 14 7% Max (%) 98.83 R's 12 6% Exam #1 Exam Statistics Mean by Recitation Grade Cutoffs Grade Distribution Min (%) 45 Aroskar 80.98 A cutoff 85 =M + 0.39 Sd A's 82 40% Q1 (%) 75.5 Mean 80.44 Melsted 80.13 B cutoff 75 =M - 0.47 Sd B's 70 34% Q2 (%) 83 Sdev 11.61 Raja Ahmad 80.30 C cutoff 65 =M - 1.33 Sd C's 30 15% Q3 (%) 89 Siorpaes 80.47 D cutoff 55 =M - 2.2 Sd D's 8 4% Max (%) 100 R's 13 6% Exam #2 Exam Statistics Mean by Recitation Grade Cutoffs Grade Distribution Min (%) 17 Aroskar 75.11 A cutoff 80 =M + 0.46 Sd A's 71 35% Q1 (%) 63 Mean 72.56 Melsted 72.81 B cutoff 70 =M - 0.17 Sd B's 57 28% Q2 (%) 75 Sdev 15.98 Raja Ahmad 72.14 C cutoff 60 =M - 0.79 Sd C's 29 14% Q3 (%) 85 Siorpaes 70.36 D cutoff 45 =M - 1.73 Sd D's 33 16% Max (%) 100 R's 13 6% Exam #3 Exam Statistics Mean by Recitation Grade Cutoffs Grade Distribution Min (%) 24 Section A 64.68 A cutoff 75 =M + 0.74 Sd A's 46 23% Q1 (%) 54.75 Mean 63.9 Section B 67.43 B cutoff 65 =M + 0.07 Sd B's 41 21% Q2 (%) 62.5 Sdev 14.84 Section C 61.29 C cutoff 55 =M - 0.6 Sd C's 56 28% Q3 (%) 74.25 Section D 65.25 D cutoff 40 =M - 1.62 Sd D's 48 24% Max (%) 97 Section E 60.32 R's 9 5%