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Bayes' Theorem

Detailed Notes & Practice Questions

1. Understanding Bayes' Theorem

Bayes' Theorem provides a way to revise existing predictions or theories (update probabilities) given new or additional evidence. It is foundational in statistics and machine learning.

P(A | B) = [ P(B | A) × P(A) ] / P(B)

2. Applications

Bayes' theorem is widely used in medical testing (e.g., probability a patient has a disease given a positive test result), spam filtering in emails, and risk assessment in finance.

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