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1. |
A line of best-fit should not be drawn for which of the following graphs. |
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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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2. |
Which scatter plot shows that x and y have a negative 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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3. |
Find  . |
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A. |
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B. |
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C. |
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D. |
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4. |
Find A + C. |
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A. |
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B. |
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C. |
impossible |
D. |
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5. |
Find A – C. |
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A. |
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B. |
impossible |
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C. |
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D. |
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6. |
Find B – A. |
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A. |
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B. |
impossible |
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C. |
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D. |
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Hint |
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7. |
Which of the following frequencies occurs most often? |
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A. |
14 |
B. |
10 |
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C. |
8 |
D. |
12 |
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Hint |
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8. |
Find the range of the data. |
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A. |
23 |
B. |
42.5 |
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C. |
19.5 |
D. |
61 |
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Hint |
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9. |
A baseball owner is trying to convince people that he is spending too much on his players. He is paying 10 of them $1 million, 8 of them $2 million, and 3 of them $15 million. To support his case, which measure of central tendency should he use? |
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A. |
mean |
B. |
mode |
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C. |
standard deviation |
D. |
median |
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Hint |
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10. |
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. |
Cluster Sampling |
B. |
Random Sampling |
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C. |
Convenience Sampling |
D. |
Systematic Sampling |
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Hint |
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11. |
To ensure healthy food, every tenth item is checked. What kind of sample is this? |
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A. |
Convenience Sampling |
B. |
Random Sampling |
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C. |
Cluster Sampling |
D. |
Systematic Sampling |
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Hint |
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12. |
Find the range of {120, 42, 62, 44, 20, 42, 112}. |
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A. |
42 |
B. |
100 |
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C. |
44 |
D. |
63 |
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Hint |
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13. |
Which interval has the most values? |
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A. |
50-60 |
B. |
80-90 |
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C. |
60-70 |
D. |
70-80 |
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Hint |
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14. |
What is the mode of the number of rainy days each month? |
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A. |
7 |
B. |
5 |
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C. |
8 |
D. |
6 |
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Hint |
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15. |
Which relationship will most likely have a positive correlation? |
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A. |
A person's height and a person's eye color. |
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B. |
Rising temperatures and ski equipment sales. |
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C. |
Battery power of a flashlight, and continued use of the flashlight. |
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D. |
Increasing snow inches, and sled sales. |
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Hint |
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16. |
Which relationship will most likely have a negative correlation? |
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A. |
Battery power of a flashlight, and continued use of the flashlight. |
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B. |
The number of movie tickets sold and the amount of popcorn sold. |
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C. |
Increasing snow inches, and sled sales. |
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D. |
A person's height and a person's eye color. |
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Hint |
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17. |
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. |
A person's height and a person's eye color. |
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C. |
Battery power of a flashlight, and continued use of the flashlight. |
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D. |
Increasing snow inches, and sled sales. |
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Hint |
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18. |
Using the box-and-whisker plot, what is the median of Exam B? |
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A. |
90 |
B. |
75 |
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C. |
83 |
D. |
60 |
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Hint |
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19. |
Find the first quartile of
{2, 5, 13, 21, 0, 5, 18, 21, 22, 23, 26, 26, 26}? |
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A. |
27 |
B. |
5 |
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C. |
25 |
D. |
26 |
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Hint |
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20. |
How could the graph be changed so it is not misleading? |
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A. |
Change the graph from vertical to horizontal. |
B. |
Color should be added. |
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C. |
Diameters of the cans should be the same. |
D. |
Change the vertical scale so that the maximum value is 100. |
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Hint |
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