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1. |
Which statistic reveals the least about the increase in the following average gasoline prices for seven consecutive weeks? $1.05, $1.05, $1.05, $1.55, $1.65, $1.75, $2.00 |
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A. |
mean |
B. |
mode |
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C. |
median |
D. |
range |
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Hint |
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2. |
A realtor is examining data on average home prices in four separate neighborhoods for the past year. Which graph gives the most accurate representation of the home prices in a neighborhood? |
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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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3. |
Which is not a reason that measures of central tendency for a set of data can be misleading? |
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A. |
incomplete data |
B. |
too much data |
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C. |
inaccurate data |
D. |
outliers in the data |
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Hint |
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4. |
An automobile dealer wants to sell a certain car for $20,000. If three other dealers in town are selling the same car for $15,000, $15,000, and $30,000, which measure of central should the car dealer use to describe this data to his customers? |
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A. |
range |
B. |
mean |
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C. |
mode |
D. |
median |
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Hint |
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5. |
Both bar graphs show the amount it costs to heat a two-story house during the winter. Which graph is misleading? Explain. |
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A. |
Graph B; there is a break in the vertical scale, the cost of heating the house in January appears to be much greater than heating the house in November. |
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B. |
Graph A; there is no break in the vertical scale, the cost of heating the house in December and February are about the same. |
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C. |
Graph B; the months are not ordered from least to greatest cost. |
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D. |
Graph A; the months are not ordered from greatest to least cost. |
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Hint |
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