Consider the following table: Scenario Severe recession Mild recession Normal growth Boon Probability 0.10 0.20 0.35 0.35 Stock Pund Rate of Return -18 -4.00 230 430 Bond Pund Rate of Return -80 124 100 30 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.) 20.5% 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