in 1998, the Children's Online Privacy Protection Act requires firms to obtain parental consent before tracking the information and the online movement of chidren; however, the act apples to those children ages 12 and under. Teenagers are often oblivious to the consequences of sharing their lives online. Data reapers creat huge libraries of digital profile
Enacted in 1998, the Children's Online Privacy Protection Act requires firms to obtain parental consent before tracking the information and the online movement of chidren; however, the act apples to those children ages 12 and under. Teenagers are often oblivious to the consequences of sharing their lives online. Data reapers creat huge libraries of digital profiles and sell these profiles to advertisers, who use it to detect trends and micro-target their ads back to teens. For example, a teen searching online for ways to lose weight could become enticed by an ad for dietary supplements, fed into his/her network by tracking cookies. As a preliminary step in gauging the magnitude of teen usage of social networking sites, an economist surveys 200 teen girls and 200 teen boys. Of teen girls, 166 use social networking sites; of teen boys, 156 use social networking sites.
In a report, use the sample information to
1. Construct a
2. Determine the
3. Determine the probability that a teen girl uses a social networking site.
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