1.	You have scores of 62, 75, and 90 on three of your history exams. What do you need to get on your fourth exam for a mean of 80?
		A.	80	B.	100
		C.	93	D.	97
		Hint
	2.	Use the flowchart to backtrack and find the solution.
		A.	7	B.	9
		C.	18	D.	8
		Hint
	3.	Which scatter plot shows that x and y have a negative correlation?
		A.		B.
		C.		D.
		Hint
	4.	The least number of children fall in which interval?
		A.	0-14 months	B.	30-44 months
		C.	15-29 months	D.	cannot be determined
		Hint
	5.	Baseball players are trying to show that they deserve more money. Their owner is paying 10 of them $1 million, 8 of them $2 million, and 3 of them $15 million. To support their case, which measure of central tendency should they use?
		A.	mode	B.	mean
		C.	median	D.	standard deviation
		Hint
	6.	Which measure of variation does not depend on the mean?
		A.	variance	B.	range
		C.	standard deviation	D.	mode
		Hint
	7.	What kind of sampling is represented if dentists from random areas of the city are asked about their favorite toothpaste?
		A.	Convenience Sampling	B.	Random Sampling
		C.	Systematic Sampling	D.	Cluster Sampling
		Hint
	8.	To ensure healthy food, every tenth item is checked. What kind of sample is this?
		A.	Systematic Sampling	B.	Random Sampling
		C.	Cluster Sampling	D.	Convenience Sampling
		Hint
	9.	Find the mode of {2, 4, 14, 2, 12, 10, 4, 14, 2}.
		A.	14	B.	2
		C.	4	D.	No mode
		Hint
	10.	What is the range of the stem-and-leaf plot?
		A.	67	B.	77
		C.	84	D.	71
		Hint
	11.	What is the mode of the number of rainy days each month?
		A.	5	B.	6
		C.	8	D.	7
		Hint
	12.	What is the mode of the number of above-temperature days each month?
		A.	8	B.	6
		C.	5	D.	2
		Hint
	13.	Using the box-and-whisker plot, what is the third quartile of Exam B?
		A.	88	B.	90
		C.	95	D.	50
		Hint
	14.	Using the box-and-whisker plot, what is the first quartile of Exam B?
		A.	75	B.	83
		C.	72	D.	63
		Hint
	15.	What is the third quartile of {2, 5, 13, 21, 29}?
		A.	27	B.	18
		C.	25	D.	20
		Hint
	16.	Find the interquartile range of {61, 65, 65, 66, 72, 75, 77, 79, 81, 85, 89, 92, 99}.
		A.	35	B.	21.5
		C.	77	D.	25
		Hint
	17.	What appears to happen in the graph?
		A.	Sales have slightly increased.	B.	Sales have cut in half each month.
		C.	Sales have doubled each month.	D.	Sales have dropped.
		Hint
	18.	Why is the graph misleading?
		A.	The dimensions other than height have changed.	B.	Scale is not at even intervals.
		C.	Scale should be smaller.	D.	Months are out of order.
		Hint
	19.	How could the graph be changed so it is not misleading?
		A.	Change the graph from vertical to horizontal.	B.	Change the vertical scale so that the maximum value is 100.
		C.	Diameters of the cans should be the same.	D.	Color should be added.
		Hint
	20.	How could the graph be changed so it is not misleading?
		A.	Make the graph start at 0 to see all of the bars.	B.	Write out the entire names of the months.
		C.	Change the color.	D.	Change the graph from vertical to horizontal.
		Hint