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1. |
Find the mean of {3, 8, 10, 1, 25}. |
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A. |
9 |
B. |
9.4 |
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C. |
1 |
D. |
8 |
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Hint |
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2. |
Which scatter plot shows that x and y have no correlation? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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3. |
Which relationship would most likely have a negative correlation? |
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A. |
A person's age, and the address of the person. |
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B. |
A person's height and the person's shoe size. |
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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 pizzas ordered, and the total price of the bill. |
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Hint |
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4. |
Which of the following is not necessarily considered a part of the population? |
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A. |
census |
B. |
random sample |
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C. |
the data collector |
D. |
biased sample |
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Hint |
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5. |
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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Hint |
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6. |
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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7. |
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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8. |
How many children attend this child care facility? |
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A. |
6 |
B. |
70 |
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C. |
14 |
D. |
100 |
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Hint |
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9. |
A histogram is a graph in which the data are organized into equal _______. |
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A. |
bars |
B. |
elements |
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C. |
intervals |
D. |
tallies |
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Hint |
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10. |
Find the range of the data. |
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 |
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A. |
42.5 |
B. |
19.5 |
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C. |
61 |
D. |
23 |
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Hint |
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11. |
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. |
median |
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C. |
mode |
D. |
standard deviation |
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Hint |
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12. |
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. |
Convenience Sampling |
B. |
Cluster Sampling |
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C. |
Systematic Sampling |
D. |
Random Sampling |
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Hint |
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13. |
What kind of sampling is represented by putting 70 names in a hat and drawing 10 of the names? |
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A. |
Systematic Sampling |
B. |
Convenience Sampling |
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C. |
Random Sampling |
D. |
Cluster Sampling |
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Hint |
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14. |
Which relationship will most likely have a positive correlation? |
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A. |
Rising temperatures and ski equipment sales. |
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B. |
Increasing snow inches, and sled 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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15. |
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. |
A person's height and a person's eye color. |
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C. |
Increasing snow inches, and sled sales. |
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D. |
The number of movie tickets sold and the amount of popcorn sold. |
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Hint |
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16. |
Which relationship will most likely have a no correlation? |
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A. |
Increasing snow inches, and sled sales. |
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B. |
Battery power of a flashlight, and continued use of the flashlight. |
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C. |
The number of hours of sleep a person gets per night and the person's shoe size. |
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D. |
Rising temperatures and ski equipment sales. |
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Hint |
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17. |
Using the box-and-whisker plot, what is the least value of the data for exam A? |
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A. |
50 |
B. |
83 |
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C. |
65 |
D. |
45 |
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Hint |
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18. |
What is the third quartile of {2, 5, 13, 21, 29}? |
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A. |
25 |
B. |
27 |
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C. |
20 |
D. |
18 |
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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. |
26 |
D. |
25 |
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Hint |
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20. |
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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