HI; Just need to check if this is correct,Whats the probability of A given B?
P(A) = 1/2
P(B) = 1/2
P(A | B) = P(A ∩ B) / P(B).
P(A ∩ B) = P(A) + P(B) - P(A ∪ B).
= 3/6 + 3/6 – 4/6.
= 6/6 - 4/6.= 2/6 = 1/3.
P(A | B) 1/3 / 3/6 = 1/3 * 6/3 = 6/9.
= 2/3.
Thanks.