{x|x is a social network site with between 300 million and 800 million registered users}

Use the following list, which shows the 10 social network sites with the most registered users, in millions, as of July 14, 2014. Let the 10 social network sites in the list represent the universal set.

Social Network Site……………….Number of Registered Users(in millions)

Facebook…………………………………………………….900

Twitter………………………………………………………..310

LinkedIn………………………………………………………255

Pinterest……………………………………………………..250

Google+………………………………………………………120

Tumblr………………………………………………………..110

Instagram……………………………………………………100

Vk………………………………………………………………..80

Flickr……………………………………………………………65

MySpace……………………………………………………..42

Use the list to determine each set in roster form.