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.

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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