information about the common stock of Firm A and Firm B: $.$

a$.$ If Mary invests half her money in each of the two common stocks, what is the portfolio's expected rate of return and standard deviation in portfolio return?

b$.$ Answer part a where the correlation between the two common stock investments is equal to zero.

c$.$ Answer part a where the correlation between the two common stock investments is equal to $+1.$

d$.$ Answer part a where the correlation between the two common stock investments is equal to $-1.$

e$.$ Using your responses to questions a$-$d$,$ describe the relationship between the correlation and the risk and return of the portfolio. portfolio is $16\%.($Round to two decimal places.$)$

The standard deviation in the portfolio is $\%.($Round to two decimal places.$)$

Data table

$\backslash$table$[[,\backslash$table$[[$Expected$],[$Return$]],\backslash$table$[[$Standard$],[$Deviation$]]],[$Firm A$\text{'}$s common stock,$0\mathrm{.}15,0\mathrm{.}17],[$Firm B$\text{'}$s common stock,$0\mathrm{.}17,0\mathrm{.}22],[$Correlation coefficient,$0\mathrm{.}70,]]$

$($Click on the icon in order to copy its contents into a spreadsheet.$)$