Philosophy Lexicon of Arguments

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Probability, philosophy: If one talks of probability, it is a question of statements applying more or less probable, which describe the course of processes and their results; probability is not about the properties of objects. See also subjective probability, objective probability, probability function, probability distribution, Bayesianism, chance, probability conditional, relative frequency.

Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.

Author Item Summary Meta data
I 86
Def Probability//Feynman: of a particular result of an observation: our estimate of the most probable fraction of a number of repeated observations giving the particular result.
I 87
P(A) = NA/N.

(s) NA: desired N: all

Probability/Feynman: absurd: e.g. what is the probability of a ghost in this house? There is no repetition here.
N and NA are not numbers based on actual observations.
NA is our best guess of what would happen.
I.e. probability is dependent on our knowledge and common sense.
Probabilities change as our knowledge changes.

I 551
Probability/Feynman: of course, there is no probability that gas atoms will go in a certain direction, because a certain direction is too exact. Therefore, we must speak of a standard "size":
As many molecules pass through any surface as through any other surface of equal size on the sphere.

Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution.

R. Feynman
Vom Wesen physikalischer Gesetze München 1993

Fey I
R. Feynman
Vorlesungen über Physik I München 2001

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Ed. Martin Schulz, access date 2018-06-20