Consider the following table: Scenario Severe recession Mild recession Normal growth Boom Required: Probability Stock Fund Rate of Return Bond Fund Rate of Return 0.10 -42% -15% 0.15 -18.0x 7% 0.35 0.40 20% 27% 9% -6% 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 %-Squared 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 %-Squared