Bayes Theorem Calculator
Online Calculators and formulas for calculations according to Bayes' theorem
This function calculates the conditional probability according to Bayes' theorem Bayes' theorem is a mathematical theorem from probability theory.
For the calculation, enter the three values of the events P(A), P(B) and P(B|A) in %. Then click on the 'Calculate' button.
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Formula of Bayes' theorem
For two events \( A\) and \(B\), the probability of \(A\) given that \(B\) occurred can be divided by the probability of \(B\) given that \(A\) occurred calculate:
\(\displaystyle P(A|B)=\frac{P(B|A)\cdot P(A)}{P(B)}\)
More description can be found at Wikipedia