Thanks everyone for a great semester!
A | 59½ 57½ 57 54 54 52 51 50¾ 50½ 49½ 48½ 48½ 47½ 47 46 45½ 45 45 44 44 43½ 43½ 42 42 41½ 41 40½ 40 39½ 39½ |
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B | 39¼ 39 37½ 36½ 36½ 36 35½ 35½ 35½ 34½ 33½ 33½ 33 32½ 32 32 31¾ 31½ 31½ 31 29½ 29 28½ 28½ 28 27½ 27¼ 26½ 26½ 25 25 24¾ 24½ 24 24 23½ 23 |
C | 22¾ 22½ 22½ 22 21½ 21½ 21 20½ 20½ 20½ 20¼ 20 19½ 19¼ 18¾ 18¼ 18 18 18 17¾ 17¼ 17 17 17 17 16½ 16½ 16½ 16½ 16½ 16¼ 15½ |
F | 14½ 13½ 13¼ 11¼ |
Problem | 1 | 2 | 3 | 4 | 5 | 6 | sum | |
---|---|---|---|---|---|---|---|---|
Mean | 4.82 | 6.31 | 4.62 | 5.44 | 6.25 | 3.62 | 30.95 | |
Stdev | 2.70 | 2.99 | 3.44 | 2.87 | 3.12 | 3.63 | 11.29 |
Undergraduates | Graduates |
---|---|
A+ A+ A A A A A A A A A A A– A– A– A– A– A– A– A– A– A– A– A– A– A– A– A– | A+ A A A– A– A– |
B+ B+ B+ B+ B+ B+ B+ B+ B+ B+ B+ B+ B B B B B B B B B B B– B– B– B– B– B– B– B– | B+ B+ B B B B– B– |
C+ C+ C+ C+ C+ C+ C+ C+ C+ C C C C C C C C C C– C– C– C– | C+ C+ C |
F F F F |
Here is the distribution of scores (except for a few minor last-minute changes). All statistics and letter-grade cutoffs were computed after excluding outliers above 95% and below 25%, as described in the grading policies, which is why the overall average is slightly lower than reported on Gradescope. However, these stats include grades from both undergraduates and graduate students; I expect the undergraduates-only cutoffs to be slightly lower.
Scores on this exam were significantly higher than for Midterm 1; in particular, a high percentage of the class earned more than 95% of the points. As a result, letter grades for the individual midterms should not be taken too seriously.
A | 40 40 40 40 40 40 39½ 39½ 39½ 39½ 39 39 38½ 38½ 38½ 38½ 38½ 38½ 38 38 38 38 38 38 38 38 38 37½ 37½ 37½ 37½ 37½ 37¼ 37 37 37 37 37 36½ 36½ 36 36 36 35¾ 35½ 35 35 |
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B | 34¼ 34¼ 34 34 34 33½ 33¼ 33¼ 32¾ 32¾ 32¼ 32 31¾ 31¾ 31½ 31½ 31 30½ 30 29½ 29½ 29 28¾ 28½ 28½ 28¼ 28 27¾ 27¼ 26¾ 26½ 26½ 25 24 |
C | 22 21½ 21 21 21 20¾ 20¼ 19½ 19½ 19 18¾ 18 17¼ 16 15½ 14¾ 13¾ 13¾ 13½ 13¼ |
D | 11 11 |
F | 10 10 |
Problem | 1 | 2 | 3 | 4 | sum | |
---|---|---|---|---|---|---|
Mean | 7.06 | 8.01 | 7.03 | 7.17 | 29.27 | |
Stdev | 2.81 | 1.97 | 3.28 | 2.92 | 8.07 |
And here is the distribution of combined scores for both midterms, again with letter grade cutoffs computed after removing outliers. Please keep in mind that these letter grades are still only rough predictions, based on only 40% of your overall coursework. Based on past experience, we expect most students' final course grades to be within half a letter grade of these estimates, but larger differences (in either direction) are not uncommon. (In particular, one student's score on Midterm 2 was 35 points higher than their score on Midterm 1!)
A | 80 79 78 78 78 78 77 76 75 75 74½ 74½ 74½ 73½ 73½ 73½ 73¼ 72½ 72½ 72 71¾ 71½ 71½ 71 71 71 71 70½ 70½ 70½ 70 69½ 69½ 68¼ 68 68 67¾ 67½ 67 |
---|---|
B | 66¼ 66 66 65½ 65½ 65 64¼ 64 63 63 62½ 62 62 61¾ 60½ 60 60 60 59¾ 59½ 57½ 56¾ 56¼ 56 53½ 52½ 52½ 51¼ 50¾ 50¼ 50 49¾ 48¾ 48 47½ 47½ |
C | 47 46½ 44¼ 44 43¼ 42¼ 42¼ 42 41¾ 41 40½ 40½ 39½ 39¼ 38½ 37¾ 35 33½ 33 32½ 31½ 28¾ |
D | 27 25 23½ |
F | 19¾ 19 18½ 18 16¼ |
Here is the distribution of scores. All statistics and letter-grade cutoffs were computed after excluding outliers above 95% and below 25%, as described in the grading policies, which is why the overall verage is slightly higher than reported on Gradescope. However, these stats include grades from both undergraduates and graduate students; I expect the undergraduates-only cutoffs to be slightly lower.
Please keep in mind that these letter grades are extremely rough predictions, based on only 20% of your overall coursework. Based on past experience, we expect most students' final course grades to be within one letter grade of these estimates, but differences of a full letter grade (in either direction) are not uncommon.
That said, if your midterm score is significantly below 25%, you should seriously consider dropping the class.
A | 40 40 39 39 38½ 38 38 38 37 37 37 36 36 36 36 35½ 35 35 35 35 35 35 34½ 34 34 33½ 33½ 33½ 33½ 33 32½ 32½ 32½ 32½ 32 32 31½ 31½ 31 31 |
---|---|
B | 30½ 30½ 30 30 29½ 29½ 29 28½ 28 28 26 26 26 26 25½ 25½ 25 25 25 25 24½ 24½ 24½ 24½ 24½ 24½ 24 24 23 23 23 23 22½ 22½ 22 22 21½ 21 |
C | 20½ 20½ 19½ 19½ 19 19 19 18½ 17½ 17 16½ 16½ 15½ 15 14 14 13½ 13 13 13 12½ 11½ |
D | 10½ 10½ 10 |
F | 9¾ 9¾ 9½ 8¼ 8 8 7½ 7¼ 7 6 5½ 5¼ 5 2¾ 2½ 2½ 2½ |
Problem | 1 | 2 | 3 | 4 | sum | |
---|---|---|---|---|---|---|
Mean | 5.68 | 5.40 | 7.61 | 7.39 | 25.74 | |
Stdev | 3.87 | 3.17 | 2.96 | 2.72 | 7.60 |
Jeff | Tue 11–12 / Thu 4-5 |
Alex | Fri 4-5 |
Charlie | Mon 1:30–2:30 |
Vivek | Wed 11:30-12:30 |
Si maintenant vous me donnez une équation que vous aurez choisie à votre gré, et que vous desirez connaître si elle est ou non soluble par radicaux, je n’aurai rien à y faire que de vous indiquer le moyen de répondre à votre question, sans vouloir charger ni moi ni personne de la faire. En un mot les calculs sont impracticables. |
— Évariste Galois |
For every polynomial-time algorithm you have, there is an exponential algorithm that I would rather run. |
— Alan Perlis |
Algorithms are for people who don't know how to buy RAM. |
— Clay Shirky |