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1. |
Find the interquartile range of {61, 65, 65 ,66, 72, 75, 77, 79, 81, 85, 89, 92, 99}. |
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A. |
77 |
B. |
87 |
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C. |
65.5 |
D. |
21.5 |
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Hint |
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2. |
How do the medians of the two sets of exam scores compare? |
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A. |
The answer cannot be determined since the median is not shown in a box and whisker plot. |
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B. |
The median of Exam A is less than the median of Exam B. |
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C. |
The medians are equal. |
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D. |
The median of Exam A is greater than the median of Exam B. |
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Hint |
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3. |
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. |
unbiased, because the location is not important |
B. |
biased, because the sample is not representative of everyone in the library |
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C. |
biased, because a library loans out primarily books |
D. |
unbiased, because they are using a systematic random sample |
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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. |
biased sample |
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C. |
the data collector |
D. |
random 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. |
How many measurement classes are represented on the histogram? |
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A. |
70 |
B. |
9 |
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C. |
44 |
D. |
14 |
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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. |
14 |
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C. |
100 |
D. |
70 |
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Hint |
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9. |
Find the interquartile range of the data. |
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A. |
13 |
B. |
23 |
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C. |
61 |
D. |
10 |
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Hint |
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10. |
Determine the interquartile range of the data. |
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 |
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A. |
3 |
B. |
9.5 |
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C. |
18 |
D. |
6.5 |
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Hint |
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