What must be true in order for P(A OR B)=P(A) +P(B)?
a and b cannot be disjoint
a and b must be independent
a and b cannot be independent
a and b must be disjoint
it is always true
2. What must be true for P(A and B)=p(A) * P(B)
a and b cannot be independent
a and b must be disjoint
a and b cannot be independent
2 answers
1. must be disjoint
1. A and B must be disjoint
2. A and B must be independent
2/2 correct 100%
2. A and B must be independent
2/2 correct 100%