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1. |
Find the range of {5, 21, 2, 14, 13}. |
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A. |
13 |
B. |
65 |
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C. |
19 |
D. |
14 |
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Hint |
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2. |
Which scatter plot shows that x and y have a positive correlation? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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3. |
Which scatter plot shows that x and y have a positive correlation? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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4. |
What are the dimensions of the matrix ? |
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A. |
3 × 2 |
B. |
4 × 2 |
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C. |
6 |
D. |
2 × 3 |
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Hint |
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5. |
The least number of children fall in which interval? |
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 |
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A. |
cannot be determined |
B. |
0-14 months |
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C. |
15-29 months |
D. |
30-44 months |
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Hint |
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6. |
Find the range of the data. |
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 |
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A. |
19.5 |
B. |
23 |
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C. |
61 |
D. |
42.5 |
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Hint |
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7. |
Which measure of variation does not depend on the mean? |
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A. |
standard deviation |
B. |
range |
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C. |
mode |
D. |
variance |
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Hint |
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8. |
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? |
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A. |
Systematic Sampling |
B. |
Random Sampling |
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C. |
Cluster Sampling |
D. |
Convenience Sampling |
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Hint |
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9. |
In a factory, every fifth product out of 100 is quality tested. What kind of sampling is represented? |
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A. |
Cluster Sampling |
B. |
Systematic Sampling |
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C. |
Convenience Sampling |
D. |
Random Sampling |
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Hint |
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10. |
Which value occurs most often? |
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 |
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A. |
84 |
B. |
71 |
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C. |
77 |
D. |
99 |
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Hint |
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11. |
What is the mode of the number of above-temperature days each month? |
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 |
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A. |
5 |
B. |
2 |
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C. |
6 |
D. |
8 |
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Hint |
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12. |
Which relationship will most likely have a no correlation? |
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A. |
Rising temperatures and ski equipment sales. |
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B. |
Increasing snow inches, and sled sales. |
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C. |
A person's height and a person's eye color. |
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D. |
Battery power of a flashlight, and continued use of the flashlight. |
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Hint |
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13. |
Find the first quartile of
{2, 5, 13, 21, 0, 5, 18, 21, 22, 23, 26, 26, 26}? |
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A. |
5 |
B. |
25 |
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C. |
27 |
D. |
26 |
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Hint |
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14. |
Find the interquartile range of
{61, 65, 65, 66, 72, 75, 77, 79, 81, 85, 89, 92, 99}. |
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A. |
25 |
B. |
21.5 |
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C. |
35 |
D. |
77 |
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Hint |
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15. |
How could the graph be changed so it is not misleading? |
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A. |
Write out the entire names of the months. |
B. |
Change the graph from vertical to horizontal. |
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C. |
Make the graph start at 0 to see all of the bars. |
D. |
Change the color. |
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Hint |
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16. |
What is A + B? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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