In: Statistics and Probability
Which companies spend the most money on advertising? A news website maintains a list of the top-spending companies. In 2014, Company A spent more than any other company, a whopping $5.10 billion. In second place was Company B, which spent $3.18 billion. The top 12 companies and the amount each spent on advertising in billions of dollars are as follows.
| Company | Advertising ($ billions)  | 
Company | Advertising ($ billions)  | 
|---|---|---|---|
| A | 5.10 | G | 1.79 | 
| B | 3.18 | H | 2.05 | 
| C | 3.11 | I | 1.59 | 
| D | 2.16 | J | 2.27 | 
| E | 2.84 | K | 2.46 | 
| F | 2.44 | L | 2.38 | 
(a)
What is the mean amount (in billion dollars) spent on advertising? (Round your answer to two decimal places.)
$ billion
(b)
What is the median amount (in billion dollars) spent on advertising?
$ billion
(c)
What are the first and third quartiles (in billion dollars)?
first quartile$ billionthird quartile$ billion