According to Advertising Ages annual salary review, Mark Hurd, the 49-year-old chairman, president, and CEO of Hewlett-Packard Co., received an annual salary of $817,000, a bonus of more than $5 million, and other compensation exceeding $17 million. His total compensation was slightly better than the average CEO total pay of $12.4 million. The following table shows the age and annual salary (in thousands of dollars) for Mark Hurd and 14 other executives who led publicly held companies (Advertising Age, December 5, 2006).

Executive	Title	Company	Age	Salary ($1000s)
Charles Prince	Chmn/CEO	Citigroup	56	1000
Harold McGraw III	CHMN/Pres/CEO	McGraw-Hill Cos	57	1172
James Dimon	Pres/CEO	JP Morgan Chase & Co.	50	1000
K. Rupert Murdoch	Chmn/CEO	News Corp	75	4509
Kenneth D. Lewis	CHMN/Pres/CEO	Bank of America	58	1500
Kenneth I. Chenault	Chmn/CEO	American Express Co.	54	1092
Louis C. Camilleri	Chmn/CEO	Altria Group	51	1663
Mark Hurd	CHMN/Pres/CEO	Hewlett-Packard Co.	49	817
Martin S. Sorrell	CEO	WPP Group	61	1562
Robert L. Nardelli	CHMN/Pres/CEO	Home Depot	57	2164
Samuel J. Palmisano	CHMN/Pres/CEO	IBM Corp	55	1680
65David C. Novak	CHMN/Pres/CEO	Yum Brands	53	1173
Henry R. Silverman	Chmn/CEO	Cendant Corp.	65	3300
Robert C. Wright	Chmn/CEO	NBC Universal	62	2500
Sumner Redstone	CHMN/Pres/CEO	Viacom	82	5807

1. Based on the information given in the problem, determine which of the two variables of interest is the independent variable and the dependent variable?

2. Develop a scatter diagram. Calculate the correlation coefficient and interpret the results.