Answer:
r = 0.1475 or 14.75%
Explanation:
The expected rate of return or r is the average return that is expected from the stock. It is the expected rate of profit or loss that an investor can anticipate on an investment whose returns are known or anticipated.
The expected rate of return of can be calculated as follows,
r = pA * rA + pB * rB + ... + pN * rN
Where,
r = 0.25 * 0.3 + 0.5 * 0.12 + 0.25 * 0.05
r = 0.1475 or 14.75%