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1. |
Find the standard deviation of the set {15, 42, 30, 22, 19, 32} to the nearest hundredth. |
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A. |
10.14 |
B. |
10.03 |
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C. |
9.91 |
D. |
9.05 |
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Hint |
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2. |
The enrollments at the University of Texas at Austin in some recent years were 47,905, 48,008, 48,857, 48,906, and 49,009. Find the standard deviation of the data. |
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A. |
434.00 |
B. |
477.62 |
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C. |
461.28 |
D. |
452.93 |
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Hint |
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3. |
Which of the graphs will have the lowest standard deviation? |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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4. |
Suppose that the mean is 50. How many standard deviations away is the value 65? |
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A. |
about 1 standard deviation |
B. |
within 1 standard deviation |
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C. |
cannot be determined from given information |
D. |
about 2 standard deviations |
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Hint |
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5. |
Compute the variance and standard deviation for the set of {284, 298, 302, 305, 310, 314, 321, 331, 337, 348}. Round to the nearest tenth. |
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A. |
341.0; 18.5 |
B. |
289.2; 17.0 |
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C. |
337.9; 18.4 |
D. |
335.7; 18.3 |
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Hint |
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