Using the data in the table a. What was the average dividend yield for the S&P 500 from 2002-2014? b. What was the volatility of the dividend yield? c. What was the average annual return of the S&P 500 from 2002-2014 excluding dividends (i.e., from capital gains only)? d. What was the volatility of the S&P 500 returns from capital gains? 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? a. What was the average dividend yield for the S&P 500 from 2002-2014? The average dividend yield is (Round to two decimal places.) b. What was the volatility of the dividend yield? The volatility of the dividend yield is the squareroot of the variance of dividend yields % (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)? The average annual return is %. (Round to two decimal places.) d. What was the volatility of the S&P 500 returns from capital gains? Annual volatility of returns is the squareroot of the variance of returns %. (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? (Select from the drop-down menu.) were more important for returns and volatility. Using the data in the table a. What was the average dividend yield for the S&P 500 from 2002-2014? b. What was the volatility of the dividend yield? c. What was the average annual return of the S&P 500 from 2002-2014 excluding dividends (i.e., from capital gains only)? d. What was the volatility of the S&P 500 returns from capital gains? 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? a. What was the average dividend yield for the S&P 500 from 2002-2014? The average dividend yield is (Round to two decimal places.) b. What was the volatility of the dividend yield? The volatility of the dividend yield is the squareroot of the variance of dividend yields % (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)? The average annual return is %. (Round to two decimal places.) d. What was the volatility of the S&P 500 returns from capital gains? Annual volatility of returns is the squareroot of the variance of returns %. (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? (Select from the drop-down menu.) were more important for returns and volatility