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Just a tidbit for remembering bayes rule:

P(A|B)P(B) = P(A,B) = P(B|A)P(A)

The familiar forms

P(A|B) = P(A,B)/P(B) = P(B|A)P(A)/P(B)

immediately follow

In words, for those who need help with the first line: the chance that A and B both happen is the chance that A happens, and (given that A happened) B happens. (Or vice versa.)

Comma is not a defined operator. Do you mean intersection?

It's a joint distribution :)

https://en.m.wikipedia.org/wiki/Joint_probability_distributi...

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