1.	Find the interquartile range of {61, 65, 65 ,66, 72, 75, 77, 79, 81, 85, 89, 92, 99}.
		A.	87	B.	65.5
		C.	77	D.	21.5
		Hint
	2.	What percent of the data is between 62 and 90 for Exam B?
		A.	75%	B.	25%
		C.	100%	D.	50%
		Hint
	3.	What is the interquartile range of Exam A?
		A.	35	B.	16
		C.	5	D.	11
		Hint
	4.	Steve needed to find out which classes people liked the most. Therefore, after he arrived at his math club meeting, he asked some people there. What kind of sample is this?
		A.	biased, voluntary	B.	biased, convenience
		C.	unbiased, random sample	D.	unbiased, random stratified sample
		Hint
	5.	To ensure healthy food, every tenth item is checked. What kind of sample is this?
		A.	unbiased, systematic random sample	B.	unbiased, stratified random sample
		C.	biased, convenience sample	D.	unbiased, simple random sample
		Hint
	6.	What are the dimensions of the matrix?
		A.	6	B.	2 × 3
		C.	3 × 2	D.	4 × 2
		Hint
	7.	Find A + C.
		A.	impossible	B.
		C.		D.
		Hint
	8.	Which of the following frequencies occurs most often?
		A.	8	B.	12
		C.	14	D.	10
		Hint
	9.	Which table contains data whose distribution would be skewed left?
		A.
		B.
		C.
		D.
		Hint
	10.	Find the range of the data.
		A.	42.5	B.	19.5
		C.	23	D.	61
		Hint