Pepe's Braindump

conditional probability

tags
Math
source
https://www.khanacademy.org/math/statistics-probability/probability-library/conditional-probability-independence/v/calculating-conditional-probability

Explaination

The probability of an event A happening may depend on the probability of another event B happening. We express that with this notation.

P(A|B)

Note: this is read Probability of A given B.

In order to calculate this probability there is something we have to consider, which is that:

P(A and B) = P(A|B) * P(B) = P(B|A) * P(A)

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