please solve for a and b

Consider the following table: Required: 0. Calculate the values of mean return and vartance for the stock fund. (Do not round intermediote calculotions. Round "Meon return" value to 1 decimol place ond "Varience" to 2 decimal places.) b. Calculate the value of the covariance between the stock and bond funds. (Negotive value should be indicated by o minus sign, Do not round intermediote colculations. Round your onswer to 2 decimal places.)