Consider the following table Stock Fund Rate of Return -37.00% -13.00% 19.00% 26.00% Bond Fund Rate of Returm Scenario Probability Severe recession Mild recession Normal growth Boom 0.10 0.15 0.35 0.40 -14.00% 1 0.00% 8,00% -300% a. Calculate the values of mean return and variance for the stock fund. (Do not round intermediate calculations. Round "Mean return" value to 1 decimal place and "Variance" to 4 decimal places.) Mean return Variance b. Calculate the value of the covariance between the stock and bond funds. (Negative value should be indicated by a minus sign. Do not round intermediate calculations. Round your answer to 4 decimal places.) Covariance