Question

According to the general equation for conditional probability, if P(A^B)= 2/3 and P(B)= 3/4, what is P(A|B)?
A. 15/16
B. 24/25
C. 8/9
D. 35/36

Answer 1

hint: \[\Large P(A|B) = \frac{P(A \cap B)}{P(B)}\]

Answer 2

Maybe I'm just an idiot? I'm still not getting any of the answers

Answer 3

Do you have this so far?

\[\Large P(A|B) = \frac{P(A \cap B)}{P(B)}\]
\[\Large P(A|B) = \frac{2/3}{3/4}\]

Answer 4

yes

Answer 5

when you divide 2/3 over 3/4, you're really multiplying 2/3 by 4/3

the second fraction flips and you multiply

Answer 6

the correct answer was 8/9

Answer 7

yes

Answer 8

since 2/3 times 4/3 = 8/9