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. GBA 1st test 161 students took test 1 24 made below 50 137 scored 50 or more for those 137 the average was 74.5 2nd test 155 students took test 2 36 made below 40 119 scored 40 or more for those 119 the average was 58.8 3rd test 159 students took test 3 36 made below 40 123 scored 40 or more for those 123 the average was 69.9 4th test 139 students took test 4 26 made below 45 113 scored 45 or more for those 113 the average was 66.8 5th test 132 students took test 5 27 made below 35 105 scored 35 or more for those 105 the average was 57.0 Pre-Exam average 139 students have taken 4 or more tests (note: this number was incorrectly reported earlier as 132) for those 139 here are the averages: HW 7.8 (out of 10, 1 HW remaining) quiz 7.2 (out of 10) (we ended up dropping three quizzes and dividing the total points by 9) demo 4.3 (out of 5) test 64.5 (multiply by 0.6 to get #points) overall 58.0 Assuming 1 more HW point for the remaining turn-in and 9.7 points out of 15 on the final results in a predicted average of 68.7. With this predicted average a possible breakdown of grades would be: 52 - 63 D 63 - 75 C 75 - 86 B You should figure your pre-exam total then figure how many exam points (out of 15 possible) you need to get the grade that you want. Final Average 133 students took 4 or more tests plus the final exam for those 133 here are the averages: HW 8.4 (out of 10) quiz 7.3 (out of 10) demo 4.4 (out of 5) test 65.3 (multiply by 0.6 to get #points) exam 9.2 (out of 15) overall 68.5 (out of 100) The final grade scale was selected so as to find gaps in the grade distribution. Here is that final scale: 50.3 - 61.6 D 61.6 - 74.4 C 74.4 - 84.8 B Letter grades were assigned strictly according to this scale. The highest E is 49.5, the lowest D is 50.4; the highest D is 61.2, the lowest C is 61.7; the highest C is 73.8, the lowest B is 74.5; the highest B is 82.4, and the lowest A is 84.9. The smallest gap between levels is 0.5 points between D and C. Here is the final grade distribution for the 133 students who took the final exam.

You may also view this column of grades as a text file.121 grade distribution