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• ## Re: [aima-talk] Re: Why Bayes' Rule is useful

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• A good way to memorize Bayes rule is this: P(A,B) = P(A|B)P(B) = P(B|A)P(A) ^ probability of A and B This is always true. You can easily get Bayes rule
Message 1 of 3 , Mar 7, 2011
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A good way to memorize Bayes rule is this:

P(A,B)  = P(A|B)P(B)    = P(B|A)P(A)
^ probability of "A and B"

This is always true.

You can easily get Bayes rule by moving one factor under the other side.

Bayes rule allows one to calculate "B given A" when we are given "A given B", ie, it allows to reverse the direction of a conditional probability.

KY
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