Consider the following table:

Scenario Probability Stock Fund

Rate of Return Bond Fund

Rate of Return

Severe recession $0\mathrm{.}1534\%10\%$

Mild recession $0\mathrm{.}2018\mathrm{.}5\%6\%$

Normal growth $0\mathrm{.}3514\%7\%$

Boom $0\mathrm{.}3024\%3\%$

Required:

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.$)$

b$.$ Calculate the value of the covariance between the stock and bond funds.