31. FB Energys stock has the following probability distribution: If economy is good (the probability is 20%), its expected stock return is 20%; if economy is on average (the probability is 60%), its expected stock return is 10%; if economy is bad (the probability is 20%), its expected return is -20%. Find the expected rate of return for the stock.

4.0%

6.0%

Using the data from Question 31, find the standard deviation (risk) for FB Energys stock

		11.49%
		12.59%
		13.56%
		14.56%

10.0%

14.0%