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Probability as a Theoretical Concept in Physics
Published online by Cambridge University Press: 28 February 2022
Extract
What is the use of probability theory in the sciences? A common answer to this question is: probability is the conceptual tool for statistics, i.e. for the evaluation of collections of numerical data. This reply, that covers a wide range of applications may be rendered by saying that the calculus of probability is the theory for statistical practice. Under this interpretation, probability is part of scientific method; it belongs to the ‘logic’ of science, i.e. it regulates scientific inference. At most, it says something about the state of justified belief of a scientist, but nothing about the nature of his objects.
If I speak of probability as a theoretical concept, I intend to refer to a different use of probability in the sciences; an explanatory use, or - more cautiously put - a use within the framework of explanatory theories, e.g. in microphysics or evolutionary biology. Compared with the standard application to statistics, this use is exceptional and problematical.
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- Part VIII. Probability
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- Copyright
- Copyright © 1987 by the Philosophy of Science Association
Footnotes
Lorraine Daston and Wolfgang Carl have read a first draft of this paper and suggested valuable improvements. I have much benefited from the comment presented by John Norton at the Pittsburgh PSA Conference.
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