the real$-$estate fund is $-0\mathrm{.}19.$

$($a$)$ Based on the information provided, what is the covariance between the stock index fund and the real$-$estate fund? $($Round your answer to four decimal places.$)$

What is the covariance between the investment$-$grade bond fund and the real$-$estate fund? $($Round your answer to four decimal places.$)$

$($b$)$ What is the expected return $($as a percent$)$ for a portfolio composed of $50\%$ invested in the stock index fund and $50\%$ invested in the real$-$estate fund?

$\%$

places.$)$

$\%$

$($c$)$ What is the expected return $($as a percent$)$ for a portfolio composed of $50\%$ invested in the investment$-$grade bond fund and $50\%$ invested in the real$-$estate fund?

$\%$

decimal places.$)$

$\%$

the stock index and the investment grade bond fund are given in the table below.