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1. |
Ten students were comparing their weekly allowances. The allowances were $4.50, $7.00, $5.00, $10.00, $5.00, $12.50, $8.50, $17.50, $20.00, and $12.00. What is the mean of this set of data? |
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A. |
$10.20 |
B. |
$9.25 |
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C. |
$102.00 |
D. |
$5.00 |
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Hint |
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2. |
The 1996 populations of the five largest cities in Maryland were 675,401, 46,227, 46,019, 45,361, and 40,181. What is the median population of the five cities? |
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A. |
45,794 |
B. |
46,019 |
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C. |
170,637.8 |
D. |
357,791 |
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Hint |
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3. |
Ten video stores were surveyed to find the cost of renting a new release video. The costs were $1.99, $2.99, $1.75, $1.99, $2.50, $1.50, $0.99, $1.99, $2.99, and $3.49. What is the mode of this set of data? |
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A. |
$0.99 |
B. |
$2.22 |
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C. |
$1.99 and $2.99 |
D. |
$1.99 |
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Hint |
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4. |
Ten test scores from Mrs. McDaniel's mathematics class are 100, 95, 93, 86, 82, 80, 78, 77, 75, and 75. She calculates the mean, median, and mode of the scores. An eleventh student takes the test with a score of 62. Mrs. McDaniel recalculates the mean, median, and mode of the test scores. Which measure changes the most when the eleventh score is included? |
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A. |
median |
B. |
The mean, median, and mode change equally. |
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C. |
mode |
D. |
mean |
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Hint |
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5. |
In New York City Crystal, Jolon, Ke-Min and Darnell are all software engineer managers. Their yearly salaries are, consecutively, $121,000, $115,000, $108,000, and $126,000. What is the mean, or average, of their yearly salaries? |
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A. |
$189,000 |
B. |
$120,500 |
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C. |
$110,000 |
D. |
$117,500 |
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Hint |
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