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.  These posted test averages are not used 
       in any way in computing the final overall class 
       average.  GBA

1st test

          177 students took test 1 

         Multiple Choice
            143 students earned 17 or more points

                for those 143 the average was 59.7%


            137 students earned 17 or more points

                for those 141 the average was 66.1%

       test 1 MC grades<>test 1 problem grades 

2nd test 

          174 students took test 2

         Multiple Choice
            139 students earned 25 or more points

                for those 139 the average was 69.0%


            106 students earned 17 or more points

                for those 106 the average was 57.8%

       test 2 MC grades<>test 2 problem grades 

3rd test 

          160 students took test 3

         Multiple Choice
            113 students earned 12 or more points

                for those 113 the average was 45.0%


            124 students earned 13 or more points

                for those 124 the average was 58.0%

       test 3 MC grades<>test 3 problem grades 

4th test  

          154 students took test 4

         Multiple Choice
            122 students earned 12 or more points

                for those 122 the average was 47.9%


            121 students earned 17 or more points

                for those 121 the average was 59.7%

       test 4 MC grades<>test 4 problem grades

5th test  

          148 students took test 5 MC
          142 students took test 5 Free Response

         Multiple Choice
            121 students earned 12 or more points

                for those 121 the average was 49.4%


             87 students earned 13 or more points

                for those  87 the average was 50.9%

       test 5 MC grades<>test 5 problem grades 

Overall Pre-Exam Average   

  148 students have taken four or more MC parts and
      four or more free-response parts, have a non-
      zero quiz average, and have more than 675 HW
      points.  For these 148 students, the overall
      averages are

                       %      points

          HW         89.6     7.16

       RECITATION    80.0     5.60

         CPS         84.7     4.24

         test        54.5    32.69

     overall                 49.69 points out of 80 possible 
                                           pre-exam points

                or   62.1%  <-- Pre-Exam Average

    Assuming an average of 60 on the final, or 12 out of
20 points, results in a predicted overall average of 61.7.

Since we now provide histograms throughout the semester
which you may use to determine your approximate standing
in the class, we no longer use the above data to attempt
to predict the final grade scale. 


      For the 145 students who took the final and had also
      taken 4 MC parts and 4 free-response parts, and had
      also earned 675 or more HW points, the final exam
      average is 

                  20.46 out of 40, or 51.2%.

       exam grades

 An alternative calculation of the Final Exam averages.


  145 students took 4 or more MC parts, and 4 or more 
      free response parts, plus the final exam, and
      had more than 675 HW points.

     For those 145 here are the averages:
                       %      points

        HW           90.20    7.22

       RECITATION    80.58    5.64

         CPS         85.90    4.30

        test         54.82   32.89 
        exam         51.14   10.23

     overall                 60.28 <-- final average

    The final grade scale was primarily determined by the
large gaps in the grade distribution.  Here is that final 
grade scale.  

      41.1 - 52.2   D
      52.3 - 64.3   C  (above 61.2 is C+)
      64.4 - 77.1   B  (below 66.0 is B-, above 74.4 is B+)
      above 77.1    A  (below 79 is A-, above 87.9 is A+)

Letter grades were assigned strictly according to this
scale.  The highest E is 39.0, the lowest D is 41.1;  the
highest D is 51.0, the lowest C is 52.3;  the highest C
is 63.3, the lowest B is 64.4; the highest B is 75.8,
and the lowest A is 77.2.  The smallest gap between
levels is 1.1 points between C to B.

    If you find a significant error in your recorded grades,
the best time to see me is before NOON FRI Dec 19th.  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


Here is the final grade distribution for the 145 students
who took four or more MC and free-response test parts plus
the final exam.

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

You may also like to look at the Fall 2007 Class Averages.