In 2011-2015, mutual fund manager, Diana Sauros produced the following percentage rates of return for the Mesozoic Fund. Rates of return on the market index are given for comparison. 2011 2012 2013 2014 2015 Fund -1.2 +24.8 +40.7 +11.1 +0.3 Market index -0.9 +16.0 +31.7 +10.9 -0.7 a. Calculate (a) the average return on both the Fund and the index, and (b) the standard deviation of the returns on each. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Market Portfolio Return Mesozoic Fund Return Average return Standard deviation b. Did Ms. Sauros do better or worse than the market index on these measures? Better O Worse