Probability Flashcards
1
Q
P (A U B)
A
= P(A) + P(B) - P(A n B)
2
Q
Conditional probability
P(A|B) [the probability of A given that B has happened]
A
= P(A n B) /
P(B)
3
Q
Independent events
P(A n B)
A
P(A) x P(B)
If two events are independent
P(A|B) = P(A)