The parent believed the question was poorly written and should have been multiple choice if limited responses were desired.

Your math is a little off. Actually completely wrong. The number of passwords of length N from an alphabet of A characters is A to the power of N, (A^N) so the key ...

Mathematics professor Gregory Lawler was named a co-winner of the $100,000 Wolf Prize. The award recognizes Lawler’s research in probability theory involving random walks and Brownian motion, which ...