The thirteenth homework had...
The assignment's 39 points were (unevenly) divided among the 13 sections as follows:
| A | B | C | D | E | F | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| handout... 33 | 2 | 3 | 3 | 3 | 3 | 3 | ...installment 1 | |||||||
| handout... 34 | 3 | 3 | 2 | 2 | ...installment 2 | |||||||||
| handout... 35 | 2 | 6 | 4 | ...installment 3 | 
You should be able to find the corresponding thirteen scores on the front
page of your homework, arranged in a three-row  quite
 quite
A few comments on specific exercises...
| 33D. | "WR" is shorthand for "wrong reason." Any argument that depends upon the labeling of the vertices (i.e., the letters 'a', 'b', etc. assigned to the vertices) cannot work here. | ||
|---|---|---|---|
| 35A. | "WR" is shorthand for "wrong reason." | 
Our solutions to the thirteenth homework have been posted.
For those who are curious, the median score was 35, and the mean score was 33.5 (sigma ~ 4).