Top 10 IPOs. An online article from the Washington Post, titled “Facebook Joins Ranks of Largest IPOs in U.S. History,” gave the following information on the top 10 IPOs (initial public offerings)

in the United States as of May 2012.

Rank Company IPO ($billions)

1 Visa 17.86 2 Enel 16.45 3 Facebook 16.00 4 General Motors 15.77 5 Deutsche Telekom 13.00 6 AT&T Wireless 10.62 7 Kraft Foods 8.68 8 France Telecom 7.29 9 Telstra 5.65 10 Swisscom 5.58

a. What type of data is presented in the first column of the table?

b. What type of data is presented in the second column of the table?

c. What type of data is presented in the third column of the table?

d. What type of data is provided by the information that Facebook is a social networking business?