NOTE: In reporting the averages from the test we drop
the lowest scores. This is because 25% (1 out
of 4) 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 test averages are not used
in any way in computing the final overall class
average. GBA
1st test
167 students took test 1
Multiple Choice
130 students earned 27 or more points
for those 130 the average was 65.9%
Problems
123 students earned 13 or more points
for those 123 the average was 53.6%
test 1 MC grades<>test 1 problem grades
2nd test
155 students took test 2
Multiple Choice
116 students earned 25 or more points
for those 116 the average was 62.3%
Problems
102 students earned 15 or more points
for those 102 the average was 60.1%
test 2 MC grades<>test 2 problem grades
3rd test
142 students took test 3
Multiple Choice
107 students earned 25 or more points
for those 107 the average was 62.7%
Problems
105 students earned 15 or more points
for those 105 the average was 58.0%
test 3 MC grades<>test 3 problem grades
4th test
126 students took test 4 MC
119 students took test 4 Free Response
Multiple Choice
88 students earned 20 or more points
for those 88 the average was 48.2%
Problems
67 students earned 13 or more points
for those 67 the average was 42.1%
test 4 MC grades<>test 4 problem grades
FINAL EXAM
For the 120 students who took the final and had also
taken 3 MC parts and 3 free-response parts, and had
also earned 715 or more HW points, the final exam
average is
20.25 out of 40, or 50.6%.
exam grades
An alternative calculation of the Final Exam averages.
FINAL AVERAGE
120 students took 3 or more MC parts, and 3 or more
free response parts, plus the final exam, and
had more than 715 HW points.
For those 120 here are the averages:
% points
HW 84.00 6.72
RECITATION 78.90 5.52
(quiz+exercises)
TP 89.20 4.46
test 57.35 34.41
exam 50.63 10.13
_________________________________
overall 61.24 <-- final average
The final grade scale was primarily determined by the
large gaps in the grade distribution. Here is that final
grade scale.
38.4 - 47.0 D
47.1 - 62.2 C (above 60.8 is C+)
62.3 - 74.8 B (below 64.2 is B-, above 72.0 is B+)
above 74.9 A (below 79.0 is A-, above 91.8 is A+)
Letter grades were assigned strictly according to this
scale. The highest E is 36.6, the lowest D is 38.5; the
highest D is 44.7, the lowest C is 47.1; the highest C
is 61.3, the lowest B is 62.3; the highest B is 74.1,
and the lowest A is 74.9. The smallest gap between
levels is 0.8 points between B to A.
If you find a significant error in your recorded grades,
the best time to see me is before NOON MON Dec 20th. After
that time any change will require that we fill out a
change-of-grade form. For information on how to figure your
final grade see
HOW TO FIGURE YOUR FINAL GRADE.
Here is the final grade distribution for the 120 students
who took three or more MC and free-response test parts plus
the final exam and had more than 715 HW points.
You may also view this column of grades as a text file.
131 grade distribution
You may also like to look at the Fall 2009 Class Averages.