During the boom years of 2003–2007, ace mutual fund manager Diana Sauros produced the following percentage rates of return. Rates of return on the market are given for comparison.
2003 2004 2005 2006 2007
Ms. Sauros +39.1 +11.0 +2.6 +18.0 +2.3
S\&P 500 +31.6 +12.5 +6.4 +15.8 +5.6
Calculate the average return and standard deviation of Ms. Sauros’s mutual fund. Did she do better or worse than the market by these measures?
a.4.52%
b.12.16%
c.14.75%
d.3.64%
e.12.25%