1.	The number of calories for a serving of different brands of potato chips and tortilla chips is shown in the back-to-back stem-and-leaf plot below. Which statement is correct?
		A.	Potato chips and tortilla chips both have the same mean number of calories.
		B.	Most of the potato chip brands have less than 150 calories per serving.
		C.	The data for potato chips and the data for tortilla chips have the same mode(s).
		D.	Most of the tortilla chip brands have less than 150 calories per serving.
		Hint
	2.	What is the difference between the highest and the lowest values?
		A.	80	B.	100
		C.	75	D.	84
		Hint
	3.	Find the median of {55, 21, 47.4, 69, 71}.
		A.	71	B.	47.4
		C.	21	D.	55
		Hint
	4.	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.	97	D.	93
		Hint
	5.	The median is the _________ of a set of numbers.
		A.	middle number	B.	most frequent
		C.	highest number	D.	average
		Hint
	6.	Make a flowchart for the expression..
		A.
		B.
		C.
		D.
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	7.	Which relationship would most likely have a negative correlation?
		A.	A person's age, and the address of the person.
		B.	A person's height and the person's shoe size.
		C.	The number of pizzas ordered, and the total price of the bill.
		D.	The number of miles driven, and the number of gallons of gas in the car.
		Hint
	8.	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.	unbiased, because they are using a systematic random sample
		C.	biased, because a library loans out primarily books	D.	biased, because the sample is not representative of everyone in the library
		Hint
	9.	What are the dimensions of the matrix?
		A.	6	B.	2 × 3
		C.	3 × 2	D.	4 × 2
		Hint
	10.	Find .
		A.	impossible
		B.
		C.
		D.
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	11.	Which of the following frequencies occurs most often?
		A.	14	B.	8
		C.	12	D.	10
		Hint
	12.	How many measurement classes are represented on the histogram?
		A.	9	B.	14
		C.	70	D.	44
		Hint
	13.	A baseball owner is trying to convince people that he is spending too much on his players. He is paying 10 of them $1 million, 8 of them $2 million, and 3 of them $15 million. To support his case, which measure of central tendency should he use?
		A.	standard deviation	B.	mean
		C.	mode	D.	median
		Hint
	14.	Which measure of variation does not depend on the mean?
		A.	variance	B.	range
		C.	standard deviation	D.	mode
		Hint
	15.	Everyone at the stadium is eligible for a drawing at the end of the night. If everyone was given a number, and 10 winners are announced, what kind of sampling is represented?
		A.	Systematic Sampling	B.	Convenience Sampling
		C.	Cluster Sampling	D.	Random Sampling
		Hint
	16.	Find the mode of {2, 4, 14, 2, 12, 10, 4, 14, 2}.
		A.	No mode	B.	14
		C.	4	D.	2
		Hint
	17.	Which interval has the most values?
		A.	50-60	B.	60-70
		C.	80-90	D.	70-80
		Hint
	18.	During the month that had three days of rain, how many had above-average temperatures?
		A.	5	B.	2
		C.	8	D.	3
		Hint
	19.	Which relationship will most likely have a positive correlation?
		A.	Battery power of a flashlight, and continued use of the flashlight.
		B.	The number of movie tickets sold and the amount of popcorn sold.
		C.	Rising temperatures and ski equipment sales.
		D.	A person's height and a person's eye color.
		Hint
	20.	Find the interquartile range of {61, 65, 65, 66, 72, 75, 77, 79, 81, 85, 89, 92, 99}.
		A.	25	B.	21.5
		C.	77	D.	35
		Hint