A portfolio is invested 40% in stock A, 30% in stock B, and 30% in stock C. Assuming that the returns are normally distributed, what is the 68% probability range of returns for any given year?

State ofProbabilityofRate of Return if State Occurs

EconomyState ofEconomyStock AStock BStock C

Boom 0.10 0.050.16 0.23

Normal 0.70 0.080.09 0.11

Recession0.20 0.15-0.03-0.25

a.	3.68% to 13.89%
b.	4.99% to 18.67%
c.	4.12% to 15.18%
d.	1.69% to 8.34%
e.	2.29% to 12.37%