Suppose Johnson & johnson and the Walgreens Boots Alliance have the expected returns and volatilities shown here, $$ with a correlation of $51\%.$ For a portfolio that is equally invested in Johnson & johnson's and Walgreens' stock, calculate:

a$.$ The expected return.

b$.$ The volatility $($standard deviation$).$

Data table

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

$\backslash$table$[[,E[R],SD(R_P)$