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1. |
In a college of 1000 girls, the dean wanted to choose a sample of 30 girls to represent the whole school. She wanted to determine average height. Which survey would get the best results? |
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A. |
Choose every third girl out of 100 randomly selected names. |
B. |
Choose 30 girls in the cafeteria at noon. |
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C. |
Choose 30 girls on the basketball team. |
D. |
Choose 30 gymnasts at the school. |
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Hint |
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2. |
Five people donated to a charity. One donated $101 and the other four people donated $1 each. Which is not a misleading statement? |
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A. |
The mode is $1, and it adequately reflects the data. |
B. |
The median is $1, and it adequately reflectes the data. |
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C. |
The mean is $21, and it adequately reflects the data. |
D. |
The mean, median, and mode do not adequately describe the data. |
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Hint |
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3. |
According to the graphs shown, which statement is true? |
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A. |
The first graph is misleading. |
B. |
The second graph is misleading. |
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C. |
Both graphs present the same information accurately. |
D. |
The graphs are both misleading. |
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Hint |
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4. |
The table shows seven different companies and their prices for car detailing. Company A claims to have prices that are less than the prices of most of their competitors. Is this an accurate statement? Why? |
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A. |
Yes, more companies charge $93 than any other price. |
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B. |
No, Company A's price is equal to those of most of the other companies. |
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C. |
No, Company A's price is lower than the mode, but higher than the prices of the 4 other companies. |
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D. |
Not Enough Information Given |
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Hint |
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5. |
Roberto wants to take a survey on favorite foods. Which sample would give the most appropriate results? |
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A. |
A poll of 30 customers at a steak house. |
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B. |
A random telephone poll of 30 people. |
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C. |
A poll of 30 customers at a fast food restaurant. |
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D. |
A poll of 30 customers at a pizza restaurant. |
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Hint |
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