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1. |
What is the difference between the highest and the lowest values? |
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A. |
100 |
B. |
80 |
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C. |
75 |
D. |
84 |
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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. |
100 |
B. |
115 |
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C. |
273 |
D. |
325 |
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Hint |
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3. |
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. |
97 |
B. |
80 |
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C. |
93 |
D. |
100 |
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Hint |
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4. |
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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5. |
How many measurement classes are represented on the histogram? |
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A. |
70 |
B. |
14 |
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C. |
9 |
D. |
44 |
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Hint |
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6. |
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. |
mode |
B. |
median |
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C. |
standard deviation |
D. |
mean |
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Hint |
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7. |
Baseball players are trying to show that they deserve more money. Their owner is paying 10 of them $1 million, 8 of them $2 million, and 3 of them $15 million. To support their case, which measure of central tendency should they use? |
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A. |
mean |
B. |
standard deviation |
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C. |
mode |
D. |
median |
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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. |
Cluster Sampling |
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C. |
Convenience Sampling |
D. |
Random Sampling |
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Hint |
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9. |
To ensure healthy food, every tenth item is checked. What kind of sample is this? |
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A. |
Random Sampling |
B. |
Cluster Sampling |
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C. |
Convenience Sampling |
D. |
Systematic Sampling |
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Hint |
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10. |
During the month that had three days of rain, how many had above-average temperatures? |
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A. |
5 |
B. |
2 |
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C. |
8 |
D. |
3 |
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Hint |
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11. |
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. |
The number of movie tickets sold and the amount of popcorn sold. |
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C. |
Battery power of a flashlight, and continued use of the flashlight. |
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D. |
Rising temperatures and ski equipment sales. |
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Hint |
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12. |
Which relationship will most likely have a no correlation? |
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A. |
The number of hours of sleep a person gets per night and the person's shoe size. |
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B. |
Rising temperatures and ski equipment sales. |
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C. |
Increasing snow inches, and sled sales. |
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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. |
Using the box-and-whisker plot, what is the first quartile of Exam B? |
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A. |
72 |
B. |
75 |
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C. |
83 |
D. |
63 |
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Hint |
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14. |
What is the third quartile of {2, 5, 13, 21, 29}? |
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A. |
18 |
B. |
20 |
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C. |
27 |
D. |
25 |
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Hint |
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15. |
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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16. |
What is B – C? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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