ABSTRACT
The debate on the structure of “natural” probability—in cultural terms, a relatively recent concept in the history of thought (it can be dated to approximately the middle of the 16th century; Hacking, 1975)—has been animated by various and contrasting currents of thought, ranging from the diverse theories of probability (Carnap, 1962; De Finetti, 1968) to studies of so-called intuitive statistics. Here we are referring to the psychological study of probabilistic judgment, the main object of which is to describe and explain reasoning processes under uncertainty.
