1.	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 the location is not important	B.	biased, because the sample is not representative of everyone in the library
		C.	unbiased, because they are using a systematic random sample	D.	biased, because a library loans out primarily books
		Hint
	2.	To ensure healthy food, every tenth item is checked. What kind of sample is this?
		A.	unbiased, stratified random sample	B.	unbiased, systematic random sample
		C.	unbiased, simple random sample	D.	biased, convenience sample
		Hint
	3.	Find .
		A.
		B.
		C.
		D.	impossible
		Hint
	4.	Find A + C.
		A.		B.	impossible
		C.		D.
		Hint
	5.	How many measurement classes are represented on the histogram?
		A.	70	B.	9
		C.	44	D.	14
		Hint
	6.	Which table contains data whose distribution would be skewed right?
		A.
		B.
		C.
		D.
		Hint
	7.	Find the range of the data.
		A.	19.5	B.	23
		C.	61	D.	42.5
		Hint
	8.	Find the lower quartile of the data.
		A.	2	B.	42.5
		C.	19.5	D.	29.5
		Hint
	9.	What is the least value of the data?
		A.	13	B.	19
		C.	3.5	D.	1
		Hint
	10.	Find the upper quartile of the data.
		A.	19	B.	9.5
		C.	13	D.	10
		Hint