Math 244 Fall 2002 Sections 1-3 Professor Bumby


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Grading

The course grades will be based on a ranking on a 700 point scale composed of the following items:

An effort will be made to respect any clustering of grades in assigning course grades.


scatter plot of grades

Here is a scatter plot comparing grades on the two exams. If you want to check the grades that I have recorded for you, you can find exam scores in the FAS Gradebook. The average on exam 1 was 58.595 out of 80 and the average on exam 2 was 63.819 out of 80. For each exam, there are also scaled averages (formed my dividing by the maximum possible score [or base score ] and multiplying by 10) for each problem. Scaling allows easy comparison of the difficulty of problems of different weight.

Exam 1
Prob. # Scaled Avg.
1 6.86
2 8.16
3 7.13
4 6.94
5 7.77
6 6.59
 
Exam 2
Prob. # Scaled Avg.
1 9.75
2 7.99
3 6.27
4 8.14
5 8.98
6 6.09

scatter plot of grades

Here is a scatter plot comparing grades on the third exam with the sum of scores on the first two exams. If you want to check the grades that I have recorded for you, you can find exam scores in the FAS Gradebook. The average for the exam was 53.169 out of 80. Information about the scores on individual problems for exam 3 is in the following table. All information is based on scores for students taking exam 3 at the scheduled time. In the scatter plot, this allowed the graph to be limited to a combined score of at least 60 on the first two exams.

Exam 3
Prob. # Scaled Avg.
1 6.05
2 4.28
3 8.39
4 7.89
5 7.42

scatter plot of grades

Here is a scatter plot comparing grades on the fourth exam with the sum of scores on the first three exams. If you want to check the grades that I have recorded for you, you can find exam scores in the FAS Gradebook. The average for this exam was 62.507 out of 80.
Exam 3
Prob. # Scaled Avg.
1 8.12
2 8.18
3 8.05
4 6.68
5 8.21

scatter plot of grades



Here is a scatter plot comparing final exam grades with the sum of all scores during the term. If you want to check the grades that I have recorded for you, you can find exam scores in the FAS Gradebook. This includes the letter grade for the course. The grades of all students who did not complete the course (and one who did, but was far below the scale of the rest of the class) were excluded. The aspect was adjusted so that lines of slope -1 give equal totals on the 700 point scale used for course grades. After this plot was prepared, some grades were adjusted to compensate for missing, or unusually low, scores on class exams based on the corresponding portion of the final exam. This means that the gaps between clusters of grades may be in slightly different places than this plot suggests. I expect to add more information about grade distribution soon.

scatter plot of grades
scatter plot of grades

The two plots above show the relation between results on Maple labs or recitation work and the class exams. The positive slope of the trend lines in both cases tends to confirm our claim that attention to routine work is good preparation for exams.



Last updated: December 26, 2002