Question: A deck of cards is shuffled and a card is dealt. The remaining cards are shuffled and another card is dealt. The process is repeated until you have four cards dealt from the main pack. Use probability trees to determine the probability of obtain¬ing:

a) four black cards (including JQK♣ and JQK♠)

b) four red cards (not including JQK hearts or JQK diamonds)?

c) four picture cards (any suit)?

d) two red cards (A-10 hearts or diamonds) and two picture cards (any suit) in any order?