In 2018, the Pew Internet & American Life Project asked 743 teens aged 13 to 17 several questions about their attitudes toward social media. The results showed that 602 say social media makes them feel more connected to what is going on in their friends' lives; 513 say social media helps them interact with a more diverse group of people, and 275 feel pressure to post content that will get a lot of likes and comments.

Round your answers to four decimal places.

a. Develop a point estimate of the proportion of teens aged 13 to 17 who say social media makes them feel more connected to what is going on in their friends' lives.

b. Develop a point estimate of the proportion of teens aged 13 to 17 who say social media helps them interact with a more diverse group of people.

c. Develop a point estimate of the proportion of teens aged 13 to 17 who feel pressure to post content that will get a lot of likes and comments.