Consider the following table: Scenario Severe recession Mild recession Normal growth Boom Required: Probability Stock Fund Rate of Return Bond Fund Rate of Return 0.15 -34% -10 % 0.20 0.35 -18.5% 14% 68 78 0.30 24% -38 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.) Answer is not complete. Mean return Variance 3.3 % %- 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.) Answer is not complete. Covariance %- Squared