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
92 students took test 1
Multiple Choice
70 students earned 30 or more points
for those 70 the average was 41.3 (68.8%)
Problems
71 students earned 41 or more points
for those 71 the average was 53.8 (82.8%)
2nd test
85 students took test 2
Multiple Choice
66 students earned 30 or more points
for those 66 the average was 42.1 (70.2%)
Problems
63 students earned 35 or more points
for those 63 the average was 45.0 (69.2%)
3rd test
82 students took test 3
Multiple Choice
58 students earned 30 or more points
for those 58 the average was 37.3 (62.2%)
Problems
62 students earned 31 or more points
for those 62 the average was 45.6 (70.2%)
4th test
80 students took test 4
Multiple Choice
64 students earned 25 or more points
for those 64 the average was 35.9 (59.8%)
Problems
59 students earned 18 or more points
for those 59 the average was 33.2 (51.1%)
Overall averages
78 students took all four tests
for these 78 students
the final HW average is 21.0 points (83.9% of 25)
the final test average is 49.7 points (66.3% of 75)
and the overall average is 70.7 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 78 students. With this final average, the final grade
scale is
55.7 - 65.4 D
65.5 - 75.6 C
75.7 - 84.9 B
with below 55.7 as E and above 84.9 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 54.0, the lowest D is 57.1, the
the highest D is 64.1, the lowest C is 65.5, the highest C is
75.0, the lowest B is 77.2, the highest B is 83.8, and the lowest
A is 85.0. The smallest gap is 1.2 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 11 and 12 AM Friday June 30 or Monday July 3. 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 78 students:
You can also view the grades as a text file:
121 grades