Please solve from Question $7$ to $11.$ Need step by step solutions for itQuestion $7$ what is the correlation of $B$ and market Question $7$ what is the correlation of $B$ and market

beta $(B)=B^{**}{m}^{**}\frac{B,m}{}{m}^{2}2$

Question $8$ if the correlation between A and $B$ is $0\mathrm{.}5$ what is the covariance between A and $B$

Question $9$ what is the st dev of the portfolio with $50\%$ of the money is risk free security and rest in $A$

what is the return of that portfolio

Question $10$ what are the $xa$ and $xb$ which will lead to minimum variance portfolio of just A and $B$ ignore

earlier correlation number and assume corr $(A,B)=-1$ minimum variance will be $0$ or $y$ axis

Question $11$ you want to make the most efficient portfolio $($ remember the CML capital market line$)$

you want the portfolio return to be $20\%$

you have $100$ dollars, which security you will use and what will be your allocation of money to

each security

beta $(B)=B^{**}{m}^{**}\frac{B,m}{}{m}^{2}2$

Question $8$ if the correlation between A and $B$ is $0\mathrm{.}5$ what is the covariance between A and $B$

Question $9$ what is the st dev of the portfolio with $50\%$ of the money is risk free security and rest in $A$

what is the return of that portfolio

Question $10$ what are the $xa$ and $xb$ which will lead to minimum variance portfolio of just A and $B$ ignore

earlier correlation number and assume corr $(A,B)=-1$ minimum variance will be $0$ or $y$ axis

Question $11$ you want to make the most efficient portfolio $($ remember the CML capital market line$)$

you want the portfolio return to be $20\%$

you have $100$ dollars, which security you will use and what will be your allocation of money to

each security practice problem $3$

Formula $1)$ slope of the curve of return on equityof Security A$(y$ axis$)$ vs the return on market $(x$ axis$)$

beta $(A)=\frac{y2-y1}{x2-x1}$

Formula $2)$ beta $(A)=\frac{a,m}{}{m}^2$

covariance of return of $\frac{A,m}{?}$ Variance of $m$

where $a$ is the security whose equities beta is calculated and $m$ is the market

Formula $3$