Let's say there's have a bag of 32 Marbles. 8 are green, 8 are blue, 8 are red, and 8 are purple. What is the probability that when you reach into the bag blindfolded and choose 2 blue marbles, and the first pick you put the marble back into the bag (with replacement)?

What is the probability that you choose 2 blue marbles and when you pick the first marble you keep the blue marble before choosing another marble from the bag (without replacement)?