NOTE: In reporting the averages from the test we drop the lowest scores. This is because 25% (2 out of 8) 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 averages are not used in any way in calculating the final class average. GBA 1st test 60 students took test 1 Multiple Choice 49 students earned 35 or more points for those 49 the average was 45.9 (76.5%) Problems 46 students earned 22 or more points for those 46 the average was 43.5 (66.9%) multiple choice grades problem grades 2nd test 56 students took test 2 Multiple Choice 38 students earned 30 or more points for those 38 the average was 37.8 (63.0%) Problems 42 students earned 22 or more points for those 42 the average was 45.7 (70.3%) multiple choice grades problem grades 3rd test 50 students took test 3 Multiple Choice 40 students earned 30 or more points for those 40 the average was 41.8 (69.7%) Problems 37 students earned 23 or more points for those 37 the average was 43.0 (66.2%) multiple choice grades problem grades 4th test 46 students took test 4 Multiple Choice 38 students earned 25 or more points for those 38 the average was 37.6 (62.7%) Problems 36 students earned 23 or more points for those 36 the average was 39.3 (60.5%) multiple choice grades problem grades Overall averages 46 students took three or more tests (including the fourth test) and had at least 90 homework points for these 46 students the final PRS average is 4.59 points (out of 5) the final HW average is 7.38 points (out of 8) the final quiz average is 5.84 points (out of 7) the final test average is 53.49 points (66.9% of 80) and the overall average is 71.3 points Note that the overall average includes all students who took three or more tests (including the fourth test) and who had at least 90 HW points. The test average is computed by dropping the lowest MC section and the lowest problem section for each student (except one section of test 4 must be kept), computing each student's average, and then computing a global average for all 46 students. Because this final average was by far the highest ever in one of my summer 131 classes, we figured the final grade scale based on a weighted average from the Summer 2002-2006 classes; this weighted average was 63.1 and was taken as the approximate middle C for the following grade scale: 45.7 - 56.8 D 56.9 - 72.7 C (above 69.2 is C+) 72.8 - 82.4 B (no B-'s this year, above 80.3 is B+) 82.5 and up A (no A-'s this year, above 90.4 is A+) with below 45.7 as E. The final scale was selected so as to find gaps in this year's distribution. With the scale as given above the highest E is 37.7, the lowest D is 45.7, the the highest D is 54.8, the lowest C is 56.9, the highest C is 70.5, the lowest B is 72.8, the highest B is 80.4, and the lowest A is 82.5. The smallest gap is 2.1 points between D and C and also between B and A. Grades were assigned strictly based on this scale. Be sure to check your TA's computation of your final grade. If you find a significant error, please contact me or your TA. For information on how to figure your final grade see HOW TO FIGURE YOUR FINAL GRADE Here is the grade distribution for those 46 students:

You can also view the grades as a text file: 131 grades You may also compare with Summer 2005 Averages Thanks again for a great summer class. GBA