WHAT IS THE STANDARD DEVIATION OF RETURNS FOR STOCK A,B, C? wHAT IS THE AVERAGE RETURN FOR A, B, C? WHAT IS THE VARIANCE FOR A,B,C?

YEAR Return

Stock A Stock B Stock C

1 15% 12% 5%

2 25% 14% -6%

3 8% 9% 10%

4 16% 25% 1%

5 5% 3% 15%