1.Construct a contingency table that shows frequencies for the qualitative variables Gender (Male or Female) and Use of Social Networking Sites (Yes or No).
2. Determine the probability that a teen uses social networking sites.
3. Determine the probability that a teen girl uses a social networking site.
4. A bill before Congress would like to extend the Children’s Online Privacy Protection Act to apply to 15-year-olds. In addition, the bill would also ban Internet companies from sending targeted advertising to children under 16 and give these children and their parents the ability to delete their digital footprint and profile with an “eraser button” (The Boston Globe, May 20, 2012). Given the probabilities that you calculated with respect to teen usage of social networking sites, do you thing that this legislation is necessary? Explain.
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