quartz/content/vault/joint probability.md
2022-06-07 16:56:28 -06:00

296 B

#math #stats the probability of both events happening

P(A\cap B) = P(A)P(B|A)

since if B were to be dependent upon A, we don't want to essentialy count the probability of A happening twice, so we have to seperate it with $P(B|A)$ if both A and B are independent,

P(A\cap B) = P(A)P(B)