1.	Find the interquartile range of {61, 65, 65 ,66, 72, 75, 77, 79, 81, 85, 89, 92, 99}.
		A.	87	B.	77
		C.	21.5	D.	65.5
		Hint
	2.	Every fifth person that comes out of a library is asked whether they prefer to read a book or watch a movie. Is this biased or unbiased and why?
		A.	unbiased, because they are using a systematic random sample	B.	unbiased, because the location is not important
		C.	biased, because a library loans out primarily books	D.	biased, because the sample is not representative of everyone in the library
		Hint
	3.	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.	unbiased, random sample
		C.	biased, convenience	D.	unbiased, random stratified sample
		Hint
	4.	Find .
		A.
		B.
		C.
		D.
		Hint
	5.	Find B – A.
		A.		B.
		C.		D.	impossible
		Hint
	6.	Which table contains data whose distribution would be skewed left?
		A.
		B.
		C.
		D.
		Hint
	7.	In which measurement class does the median occur?
		A.	90°-99° F	B.	60°-69° F
		C.	70°-79° F	D.	80°-89° F
		Hint
	8.	Find the median of the data.
		A.	19.5	B.	23
		C.	42.5	D.	29.5
		Hint
	9.	Find the lower quartile of the data.
		A.	3.5	B.	1
		C.	10	D.	6.5
		Hint
	10.	Draw a box-and-whisker plot of the data.
		A.
		B.
		C.
		D.
		Hint