Consider the following table: Required: 0. Calculate the values of mean return and variance for the stock fund. (Do not round intermediate calculations. Round "Meon return" volue to 1 decimol place and "Voriance" to 2 decimal places.) b. Calculate the value of the covariance between the stock and bond funds. (Negotive value should be indicoted by a minus sign. Do not round intermediate colculations. Round your answer to 2 decimal places.)