University of Minnesota, Twin Cities   School of Statistics   Stat 3011

Statistics 3011 (Geyer) Grades on First Midterm

Total Scores

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
  58.00   72.00   81.00   80.05   89.25   99.00

  5 | 8
  6 | 12
  6 | 5557999
  7 | 33
  7 | 566778
  8 | 0112344
  8 | 66789
  9 | 001133
  9 | 5599

Letter Grades

DISCLAIMER: Ignore this section (if you can). It is not official. This course has no official letter grades for exams. At the end, number grades for homework, midterms, and the final are added, and letter grades for the course are based on that one number (total score for all work).

That having been said, you may take as a rough guide for this exam only that 85-100 is an A (including A-), 75-84 is a B (including B+ and B-), and 74 and below is a C (including C+ and C-).

This entails no promise to use the same percentage ranges on the second midterm or on the final. Last year, 90 and above was an A. This year, we have a new textbook and exam format, and the range is lower, at least on the first midterm, but it may go up as we get more used to the textbook, the computers, and the exams.

Repeating what the disclaimer says in other words, we average numbers not letters. Don't come to me saying that you had an A on the homework and both midterms and a B on the final, so how could you possibly get a B for the course. If the midterms were both 85, the homework was 90, and the final was 75, your total grade is 85 + 85 + 90 + 2 * 75 = 410 points out of 500 (the final counts double). That's 410 / 500 = 82%, which is not an A.

In Class Part

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
  19.00   29.00   36.00   35.48   41.25   49.00

  1 | 9
  2 | 001
  2 | 6778999
  3 | 01233
  3 | 5566677788
  4 | 111123334
  4 | 59999

Computer Lab Part

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
  26.00   41.00   46.00   44.58   49.00   50.00

  2 | 6
  3 | 3
  3 | 6889
  4 | 0011123344
  4 | 556666677779999
  5 | 000000000

Problem 1 (In Class)

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   0.00    5.00    7.00    6.75   10.00   11.00

  0 | 033333333
  0 | 5555777777777777777
  1 | 000000000001

Problem 2 (In Class)

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   0.00    6.75   12.00   10.05   15.00   15.00

  0 | 000002445677889
  1 | 0122223333344555555555555

Problem 3 (In Class)

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   0.00    8.00    8.00   10.23   15.00   15.00

  0 | 055555888888888888888888
  1 | 5555555555555555

Problem 4 (In Class)

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   6.00    8.00    8.00    8.45    9.00   10.00

  0 | 6778888888888888888889999999999999999
  1 | 000

Problem 1 (Computer Lab)

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   1.00   14.75   15.00   13.95   15.00   15.00

  0 | 1
  1 | 012222224555555555555555555555555555555

Problem 2 (Computer Lab)

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   13.0    16.0    18.5    17.8    20.0    20.0

  1 | 334
  1 | 55666666777777788999999999
  2 | 00000000000

Problem 3 (Computer Lab)

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   5.00    9.75   15.00   12.83   15.00   15.00

  0 | 5557999999
  1 | 002
  1 | 555555555555555555555555555