The next parts pertain to the historical returns below for a particular foreign currency:

Year Return

2001 8%

2002 -10%

2003 2%

A. What is the average of these returns?

A) 0%

B) 4%

C) 8%

D) -8%

B. What is the variance of these returns?

A) 39

B) 56

C) 65

D) 84

C. What is the standard deviation of these returns?

A) 9.16

B) 7

C) 6.25

D) 8.06