You have observed the returns in the table below over time. Assume that the risk$-$free rate is $5\mathrm{.}75\%$ and the market risk premium is $4\mathrm{.}82\%.$

a$)$ What is the beta of Stock X $($please give your answer rounded to four decimal places$)?$

b$)$ What is the beta of Stock Y $($please give your answer rounded to four decimal places$)?$

c$)$ What is the required rate of return on Stock X$?$

d$)$ What is the required rate of return on Stock Y$?$

e$)$ What is the required rate of return on a portfolio consisting of $75\%$ of Stock X and $25\%$ of Stock Y$?$