Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. Two puzzles are presented each week: the Riddler Express for those ...

New probability puzzle from columnist John Allen Paulos. Oct. 3, 2010 — -- During my summer hiatus from Who's Counting, a fascinating new paradox, first noticed by puzzle-meister Gary Foshee, ...

Text: A First Course in Probability by Sheldon Ross. Pearson, 9th ed, 2012, ISBN: 032179477X. Course goals: This course will develop the fundamental principles of probability as well as an ...