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. GBA
1st test
77 students took test 1
Multiple Choice
53 students earned 35 or more points
for those 53 the average was 43.6 (72.7%)
Problems
60 students earned 24 or more points
for those 60 the average was 42.4 (65.2%)
2nd test
76 students took test 2
Multiple Choice
58 students earned 30 or more points
for those 58 the average was 41.4 (69.0%)
Problems
54 students earned 30 or more points
for those 54 the average was 43.6 (67.1%)
3rd test
69 students took test 3
Multiple Choice
46 students earned 30 or more points
for those 46 the average was 40.7 (67.8%)
Problems
51 students earned 21 or more points
for those 51 the average was 40.1 (61.7%)
4th test
67 students took test 4
Multiple Choice
52 students earned 25 or more points
for those 52 the average was 35.7 (59.5%)
Problems
43 students earned 20 or more points
for those 43 the average was 36.4 (55.9%)
Overall averages
67 students took all four tests
for these 67 students
the final HW average is 20.7 points (82.9% of 25)
the final test average is 47.0 points (62.6% of 75)
and the overall average is 67.7 points
Note that the overall average includes all students who took
four tests. The test average is computed by dropping the
two lowest test 'halves' for each student, computing each
student's average, and then computing a global average for
all 67 students. With this overall average the final grade
scale is
50.7 - 60.6 D
60.7 - 73.6 C
73.7 - 84.6 B
with below 50.7 as E and above 84.6 as A. The final scale was
selected so as to find gaps in the distribution. With the scale
as given above the highest E is 48.8, the lowest D is 50.7, the
the highest D is 59.9, the lowest C is 60.8, the highest C is
69.8, the lowest B is 74.1, the highest B is 83.8, and the lowest
A is 85.1. The smallest gap is 0.9 points. 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 the best time to see me is
between 10 and 11 AM Monday July 6. After that time any
change of grade requires a change of grade form. For
information on how to figure your final grade see
HOW TO FIGURE YOUR FINAL GRADE
Here is the grade distribution for those 67 students:
You can also view the grades as a text file:
121 grades