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1 - Introduction to Probability

Published online by Cambridge University Press:  24 July 2025

Luca Leuzzi
Affiliation:
National Research Council of Italy
Enzo Marinari
Affiliation:
Sapienza Università di Roma
Giorgio Parisi
Affiliation:
Sapienza Università di Roma
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Summary

The foundations of modern probability theory are briefly presented and discussed for both discrete and continuous stochastic variables. Without daring to give a rigorous mathematical construction – but citing different extremely well-written handbooks on the matter – the axiomatic theory of Kolmogorov and the concepts of joint, conditional, and marginal probability are introduced, along with the operations of union and intersection of generic random events. Eventually, Bayes’ formula is put forward with some examples. This will be at the cornerstone of statistical inference methods reported in Chapters 5 and 6.

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Publisher: Cambridge University Press
Print publication year: 2025

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