You draw a card at random from a standard deck of 52 cards. Find the following conditional probabilities. a The card is a spade, given that it is black. b. The card is an ace, given that it is black. a. The probability that a card is a spade, given that it is black, is (Type an integer or a simplified fraction.) b. The probability that a card is an ace, given that it is black, is (Type an integer or a simplified fraction.)