1General Addition Rule
P(A ∪ B) = P(A) + P(A) - P(A ∩ B)
2P(A ∪ B) = P(A) + P(A) - P(A ∩ B)
General Addition Rule
3What does ∪ mean?
Union. AND/OR
4Union. AND/OR
What does ∪ mean?
5What does ∩ mean?
Intersection.
6the probability of A given B
P(A|B)
7P(A|B)
- the probability of A given B
8$p(A | B)= \frac{p(A\cap B)}{p(B)}=P(A\ given\ B)$
Conditional Probability
9Conditional Probability
$p(A | B)= \frac{p(A\cap B)}{p(B)}=P(A\ given\ B)$