Chapter 20

PROBABILITY

Sec.1. Meaning of Chance and Probability 310 Sec.2. Probability as a fraction or proportion 312 Sec.3. Probability depends upon experience and statistics 313 Sec.4. It is a kind of Induction, and pre-supposes Causation 315 Sec.5. Of Averages and the Law of Error 318 Sec.6. Interpretation of probabilities 324 Personal Equation (p. 325); meaning of 'Expectation' (p. 325) Sec.7. Rules of the combination of Probabilities 325 Detection of a hidden Cause (p. 326); oral tradition (p. 327); circumstantial and analogical evidence (p. 328)