

1. 
An infant weighs 7 pounds at birth. Assuming that she gains 1 pound every 2 weeks, how much will she weigh in 10 weeks? 


A. 
12 pounds 
B. 
5 pounds 


C. 
7 pounds 
D. 
17 pounds 


Hint 


2. 
Write 2^{4} as a product. 


A. 
2 + 2 + 2 + 2 
B. 
4 + 4 


C. 
2 · 2 · 2 · 2 
D. 
4 · 4 


Hint 


3. 
Write 120,000,000 in scientific notation. 


A. 
1.2×10^{8} 
B. 
12×10^{7} 


C. 
1.2×10^{9} 
D. 
0.12×10^{9} 


Hint 


4. 
On how many days was the temperature below 76 degrees? 





A. 
6 
B. 
1 


C. 
2 
D. 
5 


Hint 


5. 
Which value occurred the most often? 





A. 
78 
B. 
70 


C. 
0 
D. 
77 


Hint 


6. 
What does 94 mean? 





A. 
94 
B. 
49 


C. 
904 
D. 
9/4 


Hint 


7. 
Find the lower quartile for the quiz scores. 





A. 
12 
B. 
3 


C. 
13 
D. 
17 


Hint 


8. 
Luis Gonzales plays baseball for the Arizona Diamondbacks. After 20 games one season, he had 11 homeruns. Predict how many homeruns he will have after 100 games. 


A. 
220 
B. 
22 


C. 
100 
D. 
55 


Hint 


9. 
Name the operation that should be done first in the expression 9 × (7 – 3) ÷ 2. 


A. 
addition 
B. 
multiplication 


C. 
division 
D. 
subtraction 


Hint 


10. 
Evaluate 5k + if k = 3, m = 20, and n. = 5. 


A. 
57 
B. 
20 


C. 
7 
D. 
19 


Hint 


11. 
Evaluate x^{2} + 2xy + y^{2} if = 4 and y = 7. 


A. 
121 
B. 
86 


C. 
78 
D. 
65 


Hint 


12. 
For the data {11, 13, 18, 19, 22, 25, 29, 32, 37, 37, 38}, what is the interquartile range? 


A. 
12 
B. 
19 


C. 
7 
D. 
27 


Hint 


13. 
Which statistic gives the most meaningful information about the central tendency of the data {23, 25, 26, 26, 27, 29, 29, 30, 450, 450, 450}? 


A. 
mean 
B. 
median 


C. 
range 
D. 
mode 


Hint 


14. 
The prices of a shirt, before tax, in ten different department stores are as follows: $17.99, $21.99, $14.99, $13.99, $22.99, $21.99, $19.99, $17.99, $24.99, and $18.99. If you were to create a frequency table of this data, how many department stores would fall into the interval $20.00 to $21.99? 


A. 
4 
B. 
2 


C. 
3 
D. 
1 


Hint 


15. 
The table shows how much time Eva spent in a music chat room on the Internet during the week. Which expression cannot be used to find the total number of hours she spent in the chat room? 





A. 
3 × 1.5 + 2 × 1 + 2 


B. 
5(1.5 + 1) + 2 


C. 
3(1.5) + 2(1) + 2 


D. 
1.5 + 1.5 + 1.5 + 1 + 1 + 2 


Hint 


16. 
Mrs. Robinson bought each of her two daughters a red, white, and blue striped sweater. Her total came to $33.30. Find an equation that shows how much each sweater cost. Use s to represent of the cost of 1 sweater. 


A. 
2s = 33.3 
B. 
= 33.3 


C. 
2 + s = 33.3 
D. 
s  2 = 33.3 


Hint 


17. 
The scatter plot shows the number of students per computer in U.S. public schools. Predict the number of students per computer in 2006. 





A. 
8 
B. 
2 


C. 
0 
D. 
5 


Hint 


18. 
Make a stemandleafplot of the prices of DVD players listed in the table. 





A. 



B. 



C. 



D. 



Hint 


19. 
The stemandleaf plot shows the bowling scores of one round of a bowling meet. Choose the statement that best describes how the data are spread out. 





A. 
The majority of bowlers scored 149 points or greater. 


B. 
The bowling scores are evenly spread out between 116 and 168. 


C. 
The mode represents the average bowling score. 


D. 
The majority of bowlers scored 149 points or less. 


Hint 


20. 
Make a boxandwhisker plot of the duration of ten recent solar eclipses listed in the table. 





A. 



B. 



C. 



D. 



Hint 


