Comprehensive Exams at Stanford University Computer Science

One of the rites of passage of a Stanford Ph.D. student in Computer Science is a suite of exams called the comprehensive exams ("comps").

While old examinations (and often, solutions) are available, it was not obvious to me how well one has to do on them to pass, so I compiled a few aggregate statistics for the ones I took:

The 1998-1999 Comprehensive Exams (October 1998)

Analysis of Algorithms
Author: Serge Plotkin
Passing scores: 35 - 56 out of 60 points
Automata and Formal Languages
Author: Rajeev Motwani
Passing scores: 40 - 58 out of 60 points
Artificial Intelligence
Author: Carlo Tomassi
Passing scores: 35 - 57 out of 60 points
Compilers
Author: David Dill
Passing scores: 42 - 60 out of 60 points
Computer Architecture
Author: Bill Dally
Databases
Author: Jennifer Widom
Passing scores: 40 - 53 out of 60 points
Logic
Author: Zohar Manna
Total score: 54 points (3 per correct answer, -1 per incorrect answer)
Expected value for random guessing: -3.6 points
Passing scores: 17 - 50 out of 54 points
Failing scores: -2 - 15 points
Numerical Analysis
Author: Andrew Stuart
Passing scores: 13 - 30 out of 30 points
Programming Languages
Author: John Mitchell
Passing scores: 40 - 57 out of 60 points
Software Systems
Author: Mary Baker
Passing scores: 17 - 30 out of 30 points

Wang Lam - source Tue Mar 9 14:54:20 1999 - generated Thu Aug 5 02:57:14 2004