SOLUTION: You have a deck of cards (52 cards). You draw one card and you can sense it is a black card. Given it is a black card what is probability it is not an ace?

Algebra ->  Permutations -> SOLUTION: You have a deck of cards (52 cards). You draw one card and you can sense it is a black card. Given it is a black card what is probability it is not an ace?       Log On

 

Hi,

P(A|B) = P(A and B)/P(B)

P(not an Ace | Black Card) = = 24/26 = 12/13