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1. |
Find the mode of {325, 100, 115, 621, 325, 325, 100}. |
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A. |
273 |
B. |
100 |
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C. |
115 |
D. |
325 |
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Hint |
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2. |
Find the median of {55, 21, 47.4, 69, 71}. |
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A. |
47.4 |
B. |
55 |
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C. |
21 |
D. |
71 |
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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 would not be a sample from a population set of all of the farms in Nebraska? |
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A. |
25 houses with pets are selected from any part of the state. |
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B. |
One farm is selected in each 20 square mile area of the state |
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C. |
12 farms are selected from any part of the state. |
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D. |
The farms are split into groups based on what they produce, and then 4 are selected from each group. |
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Hint |
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5. |
Which of the following is not necessarily considered a part of the population? |
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A. |
the data collector |
B. |
census |
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C. |
biased sample |
D. |
random sample |
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Hint |
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6. |
Find B – A. |
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A. |
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B. |
impossible |
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C. |
 |
D. |
 |
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Hint |
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7. |
How many measurement classes are represented on the histogram? |
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A. |
14 |
B. |
70 |
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C. |
9 |
D. |
44 |
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Hint |
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8. |
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. |
median |
B. |
mode |
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C. |
mean |
D. |
standard deviation |
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Hint |
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9. |
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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10. |
In a factory, every fifth product out of 100 is quality tested. What kind of sampling is represented? |
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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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11. |
Which reflects the convenience sampling method that a language arts teacher might use to identify the most popular book read by the language arts students? |
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A. |
Ask students who are wearing a red shirt. |
B. |
Ask the first 10 students who walk into the classroom. |
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C. |
Ask every third student from the 60 students sitting in a study hall. |
D. |
Ask all the students in one geometry class. |
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Hint |
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12. |
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. |
Cluster Sampling |
B. |
Convenience Sampling |
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C. |
Random Sampling |
D. |
Systematic Sampling |
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Hint |
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13. |
During the month that had three days of rain, how many had above-average temperatures? |
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A. |
2 |
B. |
8 |
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C. |
5 |
D. |
3 |
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Hint |
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14. |
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. |
Battery power of a flashlight, and continued use of the flashlight. |
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D. |
A person's height and a person's eye color. |
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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. |
The number of movie tickets sold and the amount of popcorn sold. |
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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 positive correlation? |
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A. |
Battery power of a flashlight, and continued use of the flashlight. |
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B. |
Rising temperatures and ski equipment 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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17. |
Using the box-and-whisker plot, what is the median of Exam B? |
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A. |
90 |
B. |
83 |
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C. |
75 |
D. |
60 |
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Hint |
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18. |
Using the box-and-whisker plot, what is the least value of the data for exam A? |
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A. |
45 |
B. |
83 |
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C. |
50 |
D. |
65 |
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Hint |
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19. |
What appears to happen in the graph? |
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A. |
Sales have dropped. |
B. |
Sales have cut in half each month. |
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C. |
Sales have doubled each month. |
D. |
Sales have slightly increased. |
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Hint |
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20. |
Why is the graph misleading? |
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A. |
The dimensions other than height have changed. |
B. |
Months are out of order. |
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C. |
Scale should be smaller. |
D. |
Scale is not at even intervals. |
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Hint |
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