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ZarkonBest ResponseYou've already chosen the best response.1
Two events A and B are disjoint if \(A\cap B=\emptyset\) A and B are independent if \(P(A\cap B)=P(A)\times P(B)\)
 one year ago

LibnizBest ResponseYou've already chosen the best response.0
so if A and B were disjoint P(A U B)= P(A)+P(B) ?
 one year ago

ZarkonBest ResponseYou've already chosen the best response.1
another way to look at it if A and B are disjoint...then if I know event A occurs then that means that B cannot occur..thus A and B are dependent (provided their individual probabilities are nonzero)
 one year ago

LibnizBest ResponseYou've already chosen the best response.0
I will remember that" when it is disjoint it is not independet"
 one year ago

ZarkonBest ResponseYou've already chosen the best response.1
correct...provided the nonzero probabilities
 one year ago

ZarkonBest ResponseYou've already chosen the best response.1
since if P(A)=0 then \(P(A\cap B)=0\) and thus \[0=P(A\cap B)=P(A)\times P(B)=0\times P(B)=0\]
 one year ago
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