### GIGAMIND

Folder:

113 Math

File:

113.038.08 Probability - General multiplication rule

# General multiplication rule

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

- We can multiply the two events but we need to take the first event into account when considering the probability of the second event
- Note:
`P(A|B) != P(B|A)`

, but if you multiply by the conditional probability they are equal

##### Tags:

- statistics
- probabilities