In a recent $5-$year period, 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.

a$.$ Calculate $($a$)$ the average return on both the Fund and the index, and $($b$)$ the standard deviation of the returns on each.

Note: Do not round intermediate calculations. Round your answers to $2$ decimal places.

b$.$ Did Ms$.$ Sauros do better or worse than the market index on these measures?