1.	Find the mode for the stem-and-leaf plot shown below.
		A.	53	B.	59
		C.	25	D.	52
		Hint
	2.	Find the standard deviation of the set {4, 7, 3, 8, 2, 6, 5, 8, 3, 2} to the nearest hundredth.
		A.	2.35	B.	2.46
		C.	2.23	D.	2.00
		Hint
	3.	The KlipKlamp company manufactures paper clips with masses that are normally distributed with a mean of 2.5 grams and a standard deviation of 0.125 gram. What percent of the clips are more than 2.75 grams?
		A.	0.5%	B.	2.5%
		C.	16%	D.	5%
		Hint
	4.	The curve shown is________.
		A.	positively skewed	B.	negatively skewed
		C.	not skewed	D.	normal
		Hint
	5.	The letters a, b, c, and d will be used to form passwords for the school's computer system. How many 4-letter passwords may be formed if the letters can be used more than once in any password?
		A.	20	B.	256
		C.	16	D.	300
		Hint
	6.	How many ways can seven books be arranged on a shelf if one of the books is an algebra text and it must be in the center?
		A.	120	B.	625
		C.	50	D.	720
		Hint
	7.	What is n if n[P(15, 5)] = P(14, 6)?.
		A.	120	B.	9
		C.	15	D.	6
		Hint
	8.	Evaluate C(5, 3).
		A.	30	B.	10
		C.	20	D.	40
		Hint
	9.	What is the probability of selecting 3 vowels at random from the word mathematics?
		A.		B.
		C.		D.
		Hint
	10.	3 cards are drawn from a standard deck of 52 cards. Find the probability of drawing either 3 red cards or 3 face cards.
		A.		B.
		C.		D.
		Hint
	11.	The probability of a basketball player making a free throw during the regular season is . During a championship game, this player made two out of three attempts. Based on his regular season record, what was the probability of making two out of three attempts?
		A.	or about 0.1389	B.	or about 0.3472
		C.	or about 0.2778	D.	or about 0.6944
		Hint
	12.	In 1992, 92% of the people surveyed felt that professional athletes were overpaid. If the margin of error for the sampling was 3%, how many people were surveyed?
		A.	2944	B.	327
		C.	225	D.	736
		Hint
	13.	Suppose two dice are rolled. What is the probability of rolling doubles?
		A.		B.
		C.		D.
		Hint
	14.	Suppose two dice are rolled. What is the probability of rolling a sum greater than an eight?
		A.		B.
		C.		D.
		Hint
	15.	Eddie flips a coin, rolls a die, and draws one card from a standard deck of 52. What is the probability that he turned up heads, rolled a prime number, and picked a king or queen?
		A.	0.038	B.	0.026
		C.	0.019	D.	0.051
		Hint
	16.	Max gets to choose 6 balloons from a group of 10 red balloons and 15 blue balloons. What is the probability that at least 4 balloons are red?
		A.	0.057	B.	0.147
		C.	0.125	D.	0.023
		Hint
	17.	Suppose a mathematician has a probability of answering any math question correctly. What is the probability that he answers at least 2 out of 5 questions correctly?
		A.	0.00046	B.	0.0081
		C.	0.00856	D.	0.99954
		Hint
	18.	In order to determine the preferred shampoo of women, 100 men were asked what kind of shampoo their wives used. Assuming that each knew for sure what their wives used, is this a random sample? If not, why is it not?
		A.	no, because the study is only getting results about married women	B.	no, because women change shampoo too frequently
		C.	no, because the study is asking men	D.	yes
		Hint