Site Calculates Risk Factors for Travelers - New York Times

The site allows users to assess the dangers of driving, walking, and riding a motorcycle or a bicycle, by season, region and personal characteristics of the traveler. It links two federal databases, one of traffic fatalities and the other of travel habits, to put the number of deaths into context by comparing them with what statisticians call exposure, or the extent to which people are in situations where there is a chance of a crash.

Site Calculates Risk Factors for Travelers - New York Times

http://hope.hss.cmu.edu/

Links for lecture 20

Text Analyzer

Anotherletter frequency histogram tool

Simon Singh's Letter Frequency Analysis Tool

Textalyzer

Foreign Language Frequency Analysis

The State of the Union in Words: A Look at the 34,000 State of the Union Words Delivered of George W. Bush - New York Times

Read more about the Enigma Machine
Play with the Enigma!
Enigma Simulator

The code book and its cd-rom have a nice chapter on the subject. BTW, our friend Turing was instrumental in cracking this code. The movie U-571 deals with the military operation that allowed the code to be cracked, though it is not very historically accurate. There is a very good BBC movie about Turing and breaking the Enigma code.

Slides for Lecture 19 online

Lecture 19: Probability