
	1.	Suppose you want to determine the favorite food of students in your school. Which would not provide a random sample?
		A.	surveying three students from each homeroom class
		B.	surveying every fifth student to enter the school in the morning
		C.	surveying every tenth student on the school roster
		D.	surveying customers at a nearby hamburger stand
		Hint

	2.	Callie conducted a survey to determine students' favorite color. Of the students she surveyed, 18 out of 48 preferred blue. If there are 600 students in her school, how many would you expect to prefer blue?
		A.	225	B.	320
		C.	240	D.	200
		Hint

	3.	Taylor and Isabel played a game with red, blue, white, and green balls. They had a bag with 10 balls. They took 4 samples of 4 balls at a time. Sample 1: RRBB Sample 2: BGRR Sample 3: RWRB Sample 4: RGBW Find the best estimate of the number of red balls in the bag.
		A.	3	B.	9
		C.	5	D.	1
		Hint

	4.	Taylor and Isabel played a game with red, blue, white, and green balls. They had a bag with 10 balls. They took 4 samples of 4 balls at a time. Sample 1: RRBB Sample 2: BGRR Sample 3: RWRB Sample 4: RGBW Find the best estimate of the number of white balls in the bag.
		A.	1	B.	3
		C.	7	D.	6
		Hint

	5.	Taylor and Isabel played a game with red, blue, white, and green balls. They had a bag with 10 balls. They took 4 samples of 4 balls at a time. Sample 1: RRBB Sample 2: BGRR Sample 3: RWRB Sample 4: RGBW Find the best estimate of the number of green balls in the bag.
		A.	9	B.	6
		C.	3	D.	1
		Hint