

1. 
The following are scores on an English exam. The highest score possible is 100. Where is there a cluster? 





A. 
90100 
B. 
6075 


C. 
20100 
D. 
2030 


Hint 


2. 
Which statistic gives the most accurate information for the following set of test scores? 2, 85, 87, 88, 89 


A. 
median 
B. 
mode 


C. 
range 
D. 
mean 


Hint 


3. 
Express 21.3 out of 100 as a percent. 


A. 
2.13% 
B. 
213% 


C. 
21.3% 
D. 
0.213% 


Hint 


4. 
Find . 


A. 

B. 



C. 

D. 



Hint 


5. 
Which pair of ratios is equivalent? 


A. 
3 to 7 and 7 to 34 


B. 
1:2 and 3:4 


C. 
4 to 6 and 8 to 10 


D. 
5:6 and 15:18 


Hint 


6. 
Solve . 


A. 
30 
B. 
20 


C. 
35 
D. 
25 


Hint 


7. 
Roughly of Earth's surface is water. Write the percent as a fraction in simplest terms. 


A. 

B. 



C. 

D. 



Hint 


8. 
The price of a computer system at an electronics store is $1099. Determine the percent of change in price if the computer system sold for $1349 a month earlier. 


A. 
22.7% increase 
B. 
22.7% decrease 


C. 
18.5% decrease 
D. 
18.5% increase 


Hint 


9. 
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. 
100 
B. 
55 


C. 
220 
D. 
22 


Hint 


10. 
Which statistic gives the most meaningful information about what price you should expect to pay for a certain baseball bat if the following data are a set of prices at different stores for the bat. {10, 10, 10, 10, 10.50, 11, 12, 14, 18}. 


A. 
mean 
B. 
median 


C. 
range 
D. 
mode 


Hint 


11. 
An ordinary sixsided die is rolled. What is the probability that a number greater than four is rolled? 


A. 

B. 



C. 

D. 



Hint 


12. 
Write an algebraic expression for the phrase 17 more than r. 


A. 
17r 
B. 
17 > r 


C. 
r + 17 
D. 
r  17 


Hint 


13. 
Solve 5s  2 < 18 


A. 
s > 5 
B. 
s < 5 


C. 
s > 4 
D. 
s < 4 


Hint 


14. 
Solve 7 + y 21 


A. 
y 14 
B. 
y 3 


C. 
y > 14 
D. 
y 14 


Hint 


15. 
Find the perimeter of the figure. 





A. 
25 in. 
B. 
15 in. 


C. 
20 in. 
D. 
24 in. 


Hint 


16. 
Solve = . 


A. 
20 
B. 
13.1 


C. 
22.1 
D. 
21 


Hint 


17. 
Write 7 · 7 · 7 · 7 · 7 in exponential form. 


A. 
7^{5} 
B. 
7^{7} 


C. 
5^{7} 
D. 
5^{5} 


Hint 


18. 
Simplify 11 + d + (15). 


A. 
26 + (d) 
B. 
26 + d 


C. 
26 + d 
D. 
26 + (d) 


Hint 


19. 
The table shows approximately the number of mobile phone users in each age group. Find the number of phone users aged 1217 as a fraction of the number of mobile phone users aged 55 and over in simplest form. 





A. 

B. 



C. 

D. 



Hint 


20. 
Suppose you toss three quarters. What is the probability that exactly two of the coins will show tails? 


A. 

B. 



C. 

D. 



Hint 


