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1. |
Every fifth person that comes out of a library is asked whether they prefer to read a book or watch a movie. Is this biased or unbiased and why? |
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A. |
biased, because a library loans out primarily books |
B. |
biased, because the sample is not representative of everyone in the library |
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C. |
unbiased, because they are using a systematic random sample |
D. |
unbiased, because the location is not important |
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Hint |
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2. |
City hall was conducting a survey concerning social issues. In order to take part, citizens had to pick up the forms at city hall. What kind of sample is this? |
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A. |
biased, convenience |
B. |
unbiased, random sample |
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C. |
unbiased, systematic random sample |
D. |
biased, voluntary |
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Hint |
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3. |
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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4. |
If A = , what is 5A? |
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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. |
How many measurement classes are represented on the histogram? |
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 |
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A. |
70 |
B. |
44 |
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C. |
9 |
D. |
14 |
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Hint |
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6. |
How many measurement classes are represented on the histogram? |
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 |
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A. |
6 |
B. |
99 |
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C. |
10 |
D. |
50 |
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Hint |
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7. |
Find the range of the data. |
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 |
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A. |
23 |
B. |
61 |
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C. |
19.5 |
D. |
42.5 |
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Hint |
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8. |
Find the median of the data. |
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A. |
19.5 |
B. |
42.5 |
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C. |
23 |
D. |
29.5 |
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Hint |
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9. |
What is the greatest value of the data? |
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 |
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A. |
10 |
B. |
9.5 |
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C. |
19 |
D. |
13 |
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Hint |
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10. |
Draw a box-and-whisker plot of the data. |
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 |
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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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