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1. |
Use the flowchart to backtrack and find the solution. |
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A. |
9 |
B. |
8 |
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C. |
18 |
D. |
7 |
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Hint |
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2. |
Which relationship would most likely have a negative correlation? |
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A. |
A person's height and the person's shoe size. |
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B. |
The number of miles driven, and the number of gallons of gas in the car. |
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C. |
A person's age, and the address of the person. |
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D. |
The number of pizzas ordered, and the total price of the bill. |
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Hint |
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3. |
What are the dimensions of the matrix ? |
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A. |
2 × 3 |
B. |
4 × 2 |
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C. |
6 |
D. |
3 × 2 |
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Hint |
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4. |
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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5. |
The least number of children fall in which interval? |
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A. |
cannot be determined |
B. |
0-14 months |
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C. |
30-44 months |
D. |
15-29 months |
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Hint |
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6. |
Find the range of the data. |
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A. |
42.5 |
B. |
61 |
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C. |
23 |
D. |
19.5 |
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Hint |
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7. |
In a factory, every fifth product out of 100 is quality tested. 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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8. |
What kind of sampling is represented if dentists from random areas of the city are asked about their favorite toothpaste? |
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A. |
Random Sampling |
B. |
Cluster Sampling |
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C. |
Systematic Sampling |
D. |
Convenience Sampling |
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Hint |
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9. |
Find the range of {120, 42, 62, 44, 20, 42, 112}. |
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A. |
42 |
B. |
44 |
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C. |
63 |
D. |
100 |
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Hint |
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10. |
What is the range of the stem-and-leaf plot? |
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A. |
71 |
B. |
77 |
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C. |
67 |
D. |
84 |
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Hint |
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11. |
What is the mode of the number of rainy days each month? |
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A. |
7 |
B. |
6 |
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C. |
8 |
D. |
5 |
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Hint |
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12. |
Which relationship will most likely have a positive correlation? |
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A. |
Increasing snow inches, and sled sales. |
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B. |
Rising temperatures and ski equipment 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 interquartile range of
{61, 65, 65, 66, 72, 75, 77, 79, 81, 85, 89, 92, 99}. |
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A. |
21.5 |
B. |
77 |
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C. |
25 |
D. |
35 |
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Hint |
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14. |
Find the median of the data. |
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A. |
30 |
B. |
25 |
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C. |
29.5 |
D. |
61 |
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Hint |
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15. |
Why is the graph misleading? |
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A. |
Months are out of order. |
B. |
Scale is not at even intervals. |
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C. |
Color is misleading. |
D. |
Bars appear to have cut in half. |
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Hint |
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16. |
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. |
Make the graph start at 0 to see all of the bars. |
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C. |
Change the graph from vertical to horizontal. |
D. |
Change the color. |
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Hint |
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