Which companies spend the most money on advertising? Business Insider maintains a list of the top-spending companies. In 2014, Procter & Gamble spent more than any other company, a whopping $5 billion. In second place was Comcast, which spent $3.08 billion (Business Insider website, December 2014). The top 12 companies and the amount each spent on advertising in billions of dollars are as follows. Click on the datafile logo to reference the data.

a. What is the mean amount spent on advertising? (to 2 decimals)

$1,970,000,000

b. What is the median amount spent on advertising? (to 3 decimals)

$2,190,000,000

c. What are the first and third quartiles?

First Quartiles (to 1 decimals)

$1,970,000,000

Third Quartiles (to 4 decimals)

$2,560,000,000