not sure what is the answer

Rockford Corp believes the following probability distribution exists for its stock. What is the expected return on the company's stock? State of the Economy Probability of State Occurring Stock's Expected Return Boom 0.45 25% Normal 0.50 15% Recession 0.05 5% State of the Economy Probability of State Occurring Stock's Expected Return Boom 0.45 25% Normal 0.50 15% Recession 0.05 5% 15% O 16% O 18.5% 19% O 21%