Over the past five years, a stock returned 8.3 percent, -32.5 percent, -2.2 percent, 46.9 percent, and 11.8 percent, respectively. What is the variance of these returns?

	A.	0.071188
	B.	0.076290
	C.	0.081504
	D.	0.082547

10 points

Question 15

Over the past six years, a stock had annual returns of 14 percent, -3 percent, 8 percent, 21 percent, -16 percent, and 4 percent, respectively. What is the standard deviation of these returns?

	A.	11.27 percent
	B.	13.05 percent
	C.	13.59 percent
	D.	15.08 percent