Please show all work and complete by hand instead of Excel since that I need to learn it that way.

Expected Return (%)

Economy Probability BIF Corporation Norwood, Inc.

Slow 30% -10 5

Normal 40% 20 20

Robust 30% 50 35

What are the standard deviations of return for BIF and Norwood?

a. 23.2%; 11.6%

b. 17.9%; 11.6%

c. 23.2%; 17.9%

d. 11.6%; 17.9%