Using the data in the table below

a. What was the average dividend yield for the S&P 500 from 2002-2014? (Round to two decimal places.)

b. What was the volatility of the dividend yield? (Round to two decimal places.)

c. What was the average annual return of the S&P 500 from 2002-2014 excluding dividends (i.e., from capital gains only)? (Round to two decimal places.)

d. What was the volatility of the S&P 500 returns from capital gains? (Round to two decimal places.)

e. Were dividends or capital gains a more important component of the S&P 500's average returns during this period? Which were the more important source of volatility? (Round to two decimal places.)

Year End	S&P 500 Index	Dividends Paid*	S&P 500 Realized Return	Microsoft Realized Return	1-Month T-Bill Return
2001	1148.08
2002	879.82	14.53	-22.1%	-22.0%	1.6%
2003	1111.92	20.8	28.7%	6.8%	1.0%
2004	1211.92	20.98	10.9%	8.9%	1.2%
2005	1248.29	23.15	4.9%	-0.9%	3.0%
2006	1418.3	27.16	15.8%	15.8%	4.8%
2007	1468.36	27.86	5.5%	20.8%	4.7%
2008	903.25	21.85	-37.0%	-44.4%	1.5%
2009	1115.1	27.19	26.5%	60.5%	0.1%
2010	1257.64	25.44	15.1%	-6.5%	0.1%
2011	1257.6	26.59	2.1%	-4.5%	0.0%
2012	1426.19	32.67	16.0%	5.8%	0.1%
2013	1848.36	39.75	32.4%	44.2%	0.0%
2014	2058.9	42.47	13.7%	27.5%	0.0%