Answer:
The portfolio rate of return is 14%
Explanation:
The portfolio's rate of return is the weighted average of the expected rate of return =s of the individual stocks that form up the portfolio. Thus the formula for rate of return of a portfolio is,
Portfolio rate of return = wA * rA + wB * rB
Where,
So, the portfolio return is,
rP or Portfolio return = 0.5 * 0.1 + 0.5 * 0.18
rP = 0.14 or 14%