The second lab test had a maximum possible score of 30 points. I added up all the scores, from lab reports and lab tests, equally -- with the exception of the first lab report, which only counted half as much as the others. I then scaled the total scores so that they added up to 100. The distribution of grades looks like this:
I determined the following grade boundaries:
A >= 90 points ( 5 students) 90 > B >= 80 points (15 students) 80 > C >= 70 points ( 8 students) 70 > D >= 60 points (10 students) 60 > F points (10 students)
Here are the grades for each student, with a "code number" for identification. The "code number" is generated by adding together the three components of a Social Security number. Thus, someone with SS 012-34-5678 would have "code number" 012+34+5678 = 5724.
ID code Test1 Total Grade
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