17.7 Personal probabilities. Which of the following is true of a personal probability about the outcome of a phenomenon?
(a) It expresses an individual’s judgment of how likely an outcome is.
(b) It can be any number because personal probabilities need not be restricted to values between 0 and 1.
(c) It must closely agree with the proportion of times the outcome would occur if the phenomenon were repeated a large number of times.
(d) Negative values indicate strong disagreement with the probability most people would assign to the outcome.