| |
| |
1. |
Construct a stem-and-leaf plot for the data.
114 101 107 120 93 108 119
127 93 99 114 100 94 125
116 99 101 127 114 110 103 |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
2. |
Determine the interquartile range for the set of data. |
| |
|
 |
| |
|
A. |
10 |
B. |
9 |
| |
|
C. |
1.5 |
D. |
8.5 |
| |
|
Hint |
|
| |
3. |
If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8, how many different ice-cream sundaes can you make? |
| |
|
A. |
192 |
B. |
58 |
| |
|
C. |
20 |
D. |
96 |
| |
|
Hint |
|
| |
4. |
The spinner below is spun and a number cube is tossed. What is the probability of blue and 4? |
| |
|
 |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
5. |
What is C(6, 4)? |
| |
|
A. |
30 |
B. |
360 |
| |
|
C. |
15 |
D. |
720 |
| |
|
Hint |
|
| |
6. |
Suppose there are 8 runners in a race. How many ways can awards for 1st, 2nd, 3rd, and 4th places be presented? |
| |
|
A. |
40,320 |
B. |
24 |
| |
|
C. |
1680 |
D. |
70 |
| |
|
Hint |
|
| |
7. |
From a class with 12 boys and 15 girls, one student is selected at random. What are the odds in favor of selecting a girl? |
| |
|
A. |
5:4 |
B. |
4:9 |
| |
|
C. |
4:5 |
D. |
5:9 |
| |
|
Hint |
|
| |
8. |
The spinner below is spun. What are the odds against it landing on green? |
| |
|
|
| |
|
A. |
2:1 |
B. |
1:2 |
| |
|
C. |
1:3 |
D. |
2:3 |
| |
|
Hint |
|
| |
9. |
A box of popsicles contains 4 of each flavor: cherry, lemon-lime, grape, and orange. Find the probability of one person randomly picking a cherry popsicle then another person selecting a grape popsicle from the box. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
|
| |
|
Hint |
|
| |
10. |
Fifty tickets, numbered 1 through 50, are placed in a box. Four tickets are randomly drawn without replacement. What is the probability that 4 odd numbers are drawn? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
11. |
The stem-and-leaf plot lists the heights of 37 children. In which interval do most of the heights occur? |
| |
|
 |
| |
|
A. |
120-129 |
B. |
130-139 |
| |
|
C. |
110-119 |
D. |
140-149 |
| |
|
Hint |
|
| |
12. |
Find the range of
{10, 14, 2, 2, 13, 3, 6, 16, 19, 3}. |
| |
|
A. |
7 |
B. |
10 |
| |
|
C. |
17 |
D. |
13 |
| |
|
Hint |
|
| |
13. |
The box-and-whisker plot represents the test scores of 25 students. What is the lower extreme of the data? |
| |
|
 |
| |
|
A. |
65 |
B. |
79 |
| |
|
C. |
55 |
D. |
50 |
| |
|
Hint |
|
| |
14. |
The box-and-whisker plot represents the test scores of 25 students. What is the lower quartile of the data? |
| |
|
|
| |
|
A. |
55 |
B. |
65 |
| |
|
C. |
79 |
D. |
88.5 |
| |
|
Hint |
|
| |
15. |
According to the histogram, how may people were born in October or later in the year? |
| |
|
 |
| |
|
A. |
80 |
B. |
30 |
| |
|
C. |
90 |
D. |
110 |
| |
|
Hint |
|
| |
16. |
According to the histogram, how many more people were born in July than in June? |
| |
|
|
| |
|
A. |
60 |
B. |
30 |
| |
|
C. |
90 |
D. |
40 |
| |
|
Hint |
|
| |
17. |
Select the correct statement. |
| |
|
 |
| |
|
A. |
Friday's income is 1.1 times Monday's income. |
B. |
Wednesday's income is 0.71 times Monday's income. |
| |
|
C. |
Thursday's income is 0.42 times Monday's income. |
D. |
Tuesday's income is 3 times Monday's income. |
| |
|
Hint |
|
| |
18. |
Select the valid statement. |
| |
|
|
| |
|
A. |
Monday's income was 70% of Tuesday's income. |
B. |
Monday's income was 90% of Wednesday's income. |
| |
|
C. |
Monday's income was 50% of Friday's income. |
D. |
Monday's income was 25% of Thursday's income. |
| |
|
Hint |
|
|
|