Scenario 14-1
When the social networking/gaming website Foursquare launched in 2009, it was only accessible to residents in 100 U.S.cities. One year later, an updated version of the service allows check-ins from locations all over the world and has over 500,000 users internationally. The site, which allows registered users to connect with friends and update their location, receives over one million check-ins per week. When users visit a particular store, their profile is automatically updated and they can share feelings about favorable experiences (or unfavorable ones). The site now holds partnerships with over 800 establishments worldwide, and high-profile partnerships with the Bravo Network and The New York Times have greatly increased the site's popularity.
-(Scenario 14-1) Foursquare has been getting over two million visits per week on its site.If 25,000 of its users are responsible for all 2 million visits, these users make up all of the site's

Question

Quizplus · Accepted Answer

25,000 users are responsible for all 2 million visits, so they are the only ones who have visited the site.

Scenario 14-1 When the Social Networking/gaming Website Foursquare Launched in 2009, It