1.	What is the interquartile range of Exam A?
		A.	5	B.	35
		C.	16	D.	11
		Hint
	2.	City hall was conducting a survey concerning social issues. In order to take part, citizens had to pick up the forms at city hall. What kind of sample is this?
		A.	biased, convenience	B.	unbiased, systematic random sample
		C.	biased, voluntary	D.	unbiased, random sample
		Hint
	3.	To conduct a survey about the people of Wisconsin, 100 people were chosen from each county based on a recent census. What kind of sample is this?
		A.	unbiased, stratified random sample	B.	unbiased, random sample
		C.	biased, voluntary	D.	biased, convenience
		Hint
	4.	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.	910 wins, 710 losses	B.	980 wins, 640 losses
		C.	950 wins, 670 losses	D.	980 wins, 950 losses
		Hint
	5.	Find A + C.
		A.		B.
		C.	impossible	D.
		Hint
	6.	In which measurement class does the median occur?
		A.	20-24 months	B.	35-39 months
		C.	25-29 months	D.	30-34 months
		Hint
	7.	In which measurement class does the median occur?
		A.	90°-99° F	B.	70°-79° F
		C.	80°-89° F	D.	60°-69° F
		Hint
	8.	Find the range of the data.
		A.	19.5	B.	23
		C.	61	D.	42.5
		Hint
	9.	Find the interquartile range of the data.
		A.	61	B.	23
		C.	10	D.	13
		Hint
	10.	Find the upper quartile of the data.
		A.	19	B.	13
		C.	10	D.	9.5
		Hint