1.	Find the median of the data in the stem-and-leaf plot.
		A.	21	B.	23
		C.	19	D.	12
		Hint
	2.	What percent of the data is between 62 and 90 for Exam B?
		A.	25%	B.	100%
		C.	50%	D.	75%
		Hint
	3.	Suppose a jean company wanted to gather data about what styles of jeans people prefer. They told Rhonda to walk around the city, and take note of the styles that she sees. What data collection method is she using?
		A.	observational study	B.	published data
		C.	experiment	D.	survey
		Hint
	4.	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.	biased, because the sample is not representative of everyone in the library
		C.	biased, because a library loans out primarily books	D.	unbiased, because the location is not important
		Hint
	5.	Find A + C.
		A.	impossible	B.
		C.		D.
		Hint
	6.	Find A – C.
		A.	impossible	B.
		C.		D.
		Hint
	7.	How many measurement classes are represented on the histogram?
		A.	70	B.	14
		C.	44	D.	9
		Hint
	8.	How many children attend this child care facility?
		A.	6	B.	70
		C.	14	D.	100
		Hint
	9.	Find the interquartile range of the data.
		A.	13	B.	23
		C.	61	D.	10
		Hint
	10.	Find the upper quartile of the data.
		A.	9.5	B.	19
		C.	13	D.	10
		Hint