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1. |
What is the difference between the highest and the lowest values? |
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A. |
75 |
B. |
80 |
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C. |
84 |
D. |
100 |
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Hint |
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2. |
Find the mode of {325, 100, 115, 621, 325, 325, 100}. |
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A. |
325 |
B. |
273 |
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C. |
115 |
D. |
100 |
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Hint |
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3. |
Find the median of {55, 21, 47.4, 69, 71}. |
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A. |
21 |
B. |
47.4 |
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C. |
71 |
D. |
55 |
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Hint |
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4. |
Make a flowchart for the expression. . |
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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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5. |
Which scatter plot shows that x and y have a negative correlation? |
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A. |
 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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6. |
Steve needed to find out which classes people liked the most. Therefore, after he arrived at his math club meeting, he asked some people there. What kind of sample is this? |
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A. |
unbiased, random stratified sample |
B. |
unbiased, random sample |
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C. |
biased, convenience |
D. |
biased, voluntary |
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Hint |
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7. |
Find  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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8. |
Find A + C. |
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A. |
 |
B. |
impossible |
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C. |
 |
D. |
 |
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Hint |
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9. |
Which of the following frequencies occurs most often? |
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A. |
12 |
B. |
8 |
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C. |
10 |
D. |
14 |
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Hint |
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10. |
Which reflects the convenience sampling method that a language arts teacher might use to identify the most popular book read by the language arts students? |
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A. |
Ask every third student from the 60 students sitting in a study hall. |
B. |
Ask the first 10 students who walk into the classroom. |
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C. |
Ask all the students in one geometry class. |
D. |
Ask students who are wearing a red shirt. |
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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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A. |
6 |
B. |
8 |
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C. |
5 |
D. |
2 |
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Hint |
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12. |
Which relationship will most likely have a positive correlation? |
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A. |
Battery power of a flashlight, and continued use of the flashlight. |
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B. |
Rising temperatures and ski equipment sales. |
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C. |
The number of movie tickets sold and the amount of popcorn sold. |
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D. |
A person's height and a person's eye color. |
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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. |
27 |
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C. |
26 |
D. |
25 |
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Hint |
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14. |
Find the first quartile of the data. |
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A. |
25 |
B. |
29.5 |
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C. |
91 |
D. |
19.5 |
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Hint |
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15. |
What appears to happen in the graph? |
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A. |
Sales have cut in half each month. |
B. |
Sales have slightly increased. |
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C. |
Sales have dropped. |
D. |
Sales have doubled each month. |
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Hint |
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16. |
What appears to happen in the graph? |
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 |
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A. |
Production dropped in half each month. |
B. |
Production has decreased slightly. |
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C. |
Production has doubled each month. |
D. |
Production increased each month. |
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Hint |
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