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One way to protect yourself from viruses is to save an e-mail attachment to your computer before opening it.
Demographics
Statistical data relating to the population and particular groups within it, such as age, race, gender, and income.
Age Group
A range of ages into which subjects can be categorized for analysis, typically used in demographic studies.
Mode of Transportation
The means by which people or goods are moved from one place to another, such as by car, train, bicycle, or airplane.
Hypothesis
An assumption or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
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