1.	A bag contains 6 red marbles, 5 blue marbles, 5 yellow marbles, and 4 green marbles. What is the probability or randomly picking a marble that is blue?
		A.		B.
		C.		D.
		Hint
	2.	Suppose you have a bag of numbered blocks 1–12. What is the probability of drawing a block with a prime number?
		A.	, or	B.
		C.		D.	, or
		Hint
	3.	The following table shows the results of rolling a number cube twenty times. What is the experimental probability of rolling a 4?
		A.	, or	B.	, or
		C.		D.	, or
		Hint
	4.	Use a tree diagram to help you find the probability of rolling a 4 on a number cube on the first roll, and a 5 on the second roll.
		A.	, or	B.
		C.		D.
		Hint
	5.	Use a tree diagram to help you find the probability of tossing a coin four times and getting 2 heads and 2 tails.
		A.		B.
		C.	, or	D.	, or
		Hint