NOTE: In reporting the averages from the test we drop the lowest scores. This is because 20% (1 out of 5) of all scores will eventually be dropped. In comparing your average with the class average you need to compare with an average which is representative of the final average. Dropping the lowest scores before reporting the average is one way of estimating the effect of the final drops. These posted test averages are not used in any way in computing the final overall class average. GBA 1st test 177 students took test 1 Multiple Choice 143 students earned 17 or more points for those 143 the average was 59.7% Problems 137 students earned 17 or more points for those 141 the average was 66.1% test 1 MC grades<>test 1 problem grades 2nd test 174 students took test 2 Multiple Choice 139 students earned 25 or more points for those 139 the average was 69.0% Problems 106 students earned 17 or more points for those 106 the average was 57.8% test 2 MC grades<>test 2 problem grades 3rd test 160 students took test 3 Multiple Choice 113 students earned 12 or more points for those 113 the average was 45.0% Problems 124 students earned 13 or more points for those 124 the average was 58.0% test 3 MC grades<>test 3 problem grades 4th test 154 students took test 4 Multiple Choice 122 students earned 12 or more points for those 122 the average was 47.9% Problems 121 students earned 17 or more points for those 121 the average was 59.7% test 4 MC grades<>test 4 problem grades 5th test 148 students took test 5 MC 142 students took test 5 Free Response Multiple Choice 121 students earned 12 or more points for those 121 the average was 49.4% Problems 87 students earned 13 or more points for those 87 the average was 50.9% test 5 MC grades<>test 5 problem grades Overall Pre-Exam Average 148 students have taken four or more MC parts and four or more free-response parts, have a non- zero quiz average, and have more than 675 HW points. For these 148 students, the overall averages are % points HW 89.6 7.16 RECITATION 80.0 5.60 (quiz+exercises) CPS 84.7 4.24 test 54.5 32.69 _________________________________ overall 49.69 points out of 80 possible pre-exam points or 62.1% <-- Pre-Exam Average Assuming an average of 60 on the final, or 12 out of 20 points, results in a predicted overall average of 61.7. Since we now provide histograms throughout the semester which you may use to determine your approximate standing in the class, we no longer use the above data to attempt to predict the final grade scale. FINAL EXAM For the 145 students who took the final and had also taken 4 MC parts and 4 free-response parts, and had also earned 675 or more HW points, the final exam average is 20.46 out of 40, or 51.2%. exam grades An alternative calculation of the Final Exam averages. FINAL AVERAGE 145 students took 4 or more MC parts, and 4 or more free response parts, plus the final exam, and had more than 675 HW points. For those 145 here are the averages: % points HW 90.20 7.22 RECITATION 80.58 5.64 (quiz+exercises) CPS 85.90 4.30 test 54.82 32.89 exam 51.14 10.23 _________________________________ overall 60.28 <-- final average The final grade scale was primarily determined by the large gaps in the grade distribution. Here is that final grade scale. 41.1 - 52.2 D 52.3 - 64.3 C (above 61.2 is C+) 64.4 - 77.1 B (below 66.0 is B-, above 74.4 is B+) above 77.1 A (below 79 is A-, above 87.9 is A+) Letter grades were assigned strictly according to this scale. The highest E is 39.0, the lowest D is 41.1; the highest D is 51.0, the lowest C is 52.3; the highest C is 63.3, the lowest B is 64.4; the highest B is 75.8, and the lowest A is 77.2. The smallest gap between levels is 1.1 points between C to B. If you find a significant error in your recorded grades, the best time to see me is before NOON FRI Dec 19th. After that time any change will require that we fill out a change-of-grade form. For information on how to figure your final grade see HOW TO FIGURE YOUR FINAL GRADE. Here is the final grade distribution for the 145 students who took four or more MC and free-response test parts plus the final exam.

You may also view this column of grades as a text file. 131 grade distribution You may also like to look at the Fall 2007 Class Averages.