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 135 students took test 1 14 made 40 or below 121 scored above 40 for those 121 the average was 73.4 2nd test 124 students took test 2 18 made 40 or below 106 scored above 40 for those 106 the average was 63.6 3rd test 114 students took test 3 28 made 40 or below 86 scored above 40 for those 86 the average was 61.4 4th test 116 students took test 4 28 made 40 or below 88 scored above 40 for those 88 the average was 59.3 5th test 99 students took test 5 21 made 30 or below 78 scored above 30 for those 78 the average was 55.4 Overall averages 109 students have taken 4 or more tests for these 109 the test average is 64.3 (60 points possible) HW average is 7.5 (10 points possible) quiz average is 8.5 (10 points possible) the average total points (out of 80 possible) is 54.6 Final exam 111 students took the final exam for those 111 the average was 12.3 (out of 20) Total class average 109 students took 4 or more tests plus the final exam for those 109 the final overall average is 66.5 points Here is the grade distribution for those 109 students:

The estimated grade scale, before the exam, based on a middle C of 68.0, was D 51-62 C 62-74 B 74-85 With the final overall average at 66.5 the final grade scale becomes: D 48.6-60 C 60-71.6 B 71.6-82 with below 48.6 an E and above 82 an A. The scale was adjusted so as to find gaps in the grade distribution. With the scale as above the highest E is 47.6, the lowest D is 48.8, the highest D is 58.9, the lowest C is 60.1, the highest C is 70.5, the lowest B is 71.7, the highest B is 81.2, and the lowest A is 82.1. So there is at least a 0.9 gap between each grade level. Letter grades will be assigned strictly according to this scale.