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. Fund Market index 2011 -1.2 -0.9 2012 +24,8 +16.0 2013 +48.7 +31,7 2014 +11.1 +10.9 2015 +0.3 -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 Intermedlate calculations. Round your answers to 2 decimal places.) Mesozoic Fund Return Market Portfolio Return Average return Standard deviation b. Did Ms. Sauros do better or worse than the market index on these measures? Better Worse