Answer:
b. 3.70 percent
Step-by-step explanation:
Expected rate of return of a stock, given probabilities, is calculated by summing up the product of probability of each state occurring by the expected return of the stock should that happen.
Expected rate of return = SUM (probability *return)
Boom;(probability* return) = (0.15* 0.10) = 0.015 or 1.5%
Normal ;(probability* return) = (0.70* 0.04) = 0.028 or 2.8%
Recession ; (probability* return) = (0.15* -0.04) = -0.006 or -0.6%
Next, sum up the expected return for each state of the economy to find the expected rate of return on this stock;
= 1.5% + 2.8% -0.6%
= 3.7%
Therefore, the correct answer is choice B.