involving sets E and F. Suppose for this problem that Pr[E]=17/24 and Pr[F]=13/24. Just as in the book, Pr[(E∪F)′]=0.
(1) What is Pr[E|F]?

(2) What is Pr[F|E]?

Question

involving sets E and F. Suppose for this problem that Pr[E]=17/24 and Pr[F]=13/24. Just as in the book, Pr[(E∪F)′]=0.
(1) What is Pr[E|F]? 
 

(2) What is Pr[F|E]?

pulsified333 · Answer

@dan815

anonymous · Answer

$$P(E\cup F)'=0$$ means everything is either in E or F or both 
nothing is outside 
the total therefore in E and F is 1

pulsified333 · Answer

so how do i find the intersection of E and F

pulsified333 · Answer

@satellite73

zarkon · Answer

$$P(E\cup F)=P(E)+P(F)-P(E\cap F)$$

pulsified333 · Answer

so is the Union of E and F 30?

pulsified333 · Answer

i still do not get how to find the intersection

zarkon · Answer

solve the equation I wrote above...then plug in numbers

anonymous · Answer

where does the 30 come from?

anonymous · Answer

oh nvm i see, it is the numerator $$\frac{30}{24}$$ which is of course the probability of nothing, since it is larger than one
what needs to be subtracted?

pulsified333 · Answer

right

pulsified333 · Answer

im still confused on how to do this