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1. |
Find the mode of {325, 100, 115, 621, 325, 325, 100}. |
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A. |
100 |
B. |
325 |
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C. |
115 |
D. |
273 |
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Hint |
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2. |
You have scores of 62, 75, and 90 on three of your history exams. What do you need to get on your fourth exam for a mean of 80? |
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A. |
80 |
B. |
97 |
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C. |
93 |
D. |
100 |
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Hint |
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3. |
Which relationship would most likely have a positive correlation? |
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A. |
the amount of memory in computer, and the number of keys on the keyboard. |
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B. |
the rate at which a train travels, and the time it takes for it to reach its destination. |
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C. |
the number of miles driven, and the number of gallons of gas in the car. |
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D. |
the number of tickets sold for a baseball game, and the number of hotdogs sold at the game. |
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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. |
Use the flowchart to backtrack and find the solution. |
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A. |
18 |
B. |
9 |
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C. |
7 |
D. |
8 |
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Hint |
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6. |
Which of the following would not be a sample from a population set of all of the farms in Nebraska? |
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A. |
12 farms are selected from any part of the state. |
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B. |
The farms are split into groups based on what they produce, and then 4 are selected from each group. |
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C. |
One farm is selected in each 20 square mile area of the state |
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D. |
25 houses with pets are selected from any part of the state. |
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Hint |
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7. |
Find A – C. |
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A. |
 |
B. |
 |
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C. |
impossible |
D. |
 |
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Hint |
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8. |
A histogram is a graph in which the data are organized into equal _______. |
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A. |
tallies |
B. |
elements |
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C. |
bars |
D. |
intervals |
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Hint |
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9. |
What kind of sampling is represented by putting 70 names in a hat and drawing 10 of the names? |
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A. |
Convenience Sampling |
B. |
Systematic Sampling |
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C. |
Random Sampling |
D. |
Cluster Sampling |
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Hint |
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10. |
Find the mean of the data in the stem-and-leaf plot. |
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A. |
78 |
B. |
77 |
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C. |
99 |
D. |
67 |
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Hint |
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11. |
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. |
Increasing snow inches, and sled 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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12. |
Using the box-and-whisker plot, what is the median of Exam B? |
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A. |
83 |
B. |
90 |
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C. |
60 |
D. |
75 |
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Hint |
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13. |
Using the box-and-whisker plot, what is the first quartile of Exam B? |
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A. |
63 |
B. |
83 |
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C. |
72 |
D. |
75 |
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Hint |
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14. |
What appears to happen in the graph? |
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A. |
Sales have cut in half each month. |
B. |
Sales have dropped. |
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C. |
Sales have doubled each month. |
D. |
Sales have slightly increased. |
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Hint |
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15. |
Why is the graph misleading? |
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A. |
Scale should be smaller. |
B. |
Months are out of order. |
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C. |
Scale is not at even intervals. |
D. |
The dimensions other than height have changed. |
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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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