Tyree places 16 marbles in a bag - 8 green, 3 red, 1 yellow, and 4 blue.
a. What is the probability of picking 2 green marbles in a row if he replaces the first marble before picking the second marble? Write an explanation stating the mathematical reason(s) why you chose each of your steps.
b. What is the probability of picking 2 green marbles in a row if he does not replace the first marble before picking the second marble? Write an explanation stating the mathematical reason(s) why you chose each of your steps.
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