1.	Find the interquartile range of {61, 65, 65 ,66, 72, 75, 77, 79, 81, 85, 89, 92, 99}.
		A.	77	B.	65.5
		C.	21.5	D.	87
		Hint
	2.	To ensure healthy food, every tenth item is checked. What kind of sample is this?
		A.	unbiased, systematic random sample	B.	biased, convenience sample
		C.	unbiased, stratified random sample	D.	unbiased, simple random sample
		Hint
	3.	A survey is done to see how many times the average American volunteers for things. Ronald asks people from all parts of the United States. What kind of sample is this?
		A.	unbiased, simple random sample	B.	unbiased, stratified random sample
		C.	biased, convenience	D.	biased, voluntary response
		Hint
	4.	Find .
		A.	impossible
		B.
		C.
		D.
		Hint
	5.	Suppose the matrix represents the records of the top four teams in a baseball season. If someone used this matrix to predict the total number of wins and losses by the second place team in the next decade (ten years), how many wins and losses would they predict?
		A.	950 wins, 670 losses	B.	980 wins, 950 losses
		C.	980 wins, 640 losses	D.	910 wins, 710 losses
		Hint
	6.	The least number of children fall in which interval?
		A.	30-44 months	B.	15-29 months
		C.	0-14 months	D.	cannot be determined
		Hint
	7.	In which measurement class does the median occur?
		A.	70°-79° F	B.	80°-89° F
		C.	60°-69° F	D.	90°-99° F
		Hint
	8.	Find the range of the data.
		A.	42.5	B.	23
		C.	19.5	D.	61
		Hint
	9.	What is the greatest value of the data?
		A.	9.5	B.	19
		C.	10	D.	13
		Hint
	10.	Draw a box-and-whisker plot of the data.
		A.
		B.
		C.
		D.
		Hint