Problem Solving in Market Research Problem Solving in Market Research 457457Use the results of the survey to solve each problem.- At Hastings Middle School, 560 of the students use social networking sites.
Predict how many of them use the sites to make plans with friends. - Suppose 17.9 million teens use online social networks. Predict how many will
be using the sites to make new friends. - According to the survey, what percent of a teen’s networking site friends are
people they regularly see? - Landon randomly selects a friend from his social networking site. What
is the probability that it is someone he never sees in person? Write as
a percent. - Paris wants to leave a message on 8 of her friends’ social networking sites.
In how many ways can she leave a message on her friends’ sites?
Survey Results:
Teens and Social Networking
Reason to Use Social Networks Percent of Respondents
Stay in touch with friends 91%
Make plans with friends 72%
Make new friends 49%
Friends on Social Networking Sites Average Number
People who are regularly seen 43
People who are occasionally seen 23
People who are never seen in person 33
Total 99GLE 0706.1.7456_457_C08_CC_895130.indd 457 12/29/09 1:25 PM