What is the expected return on a stock if the firm will earn 20% during a period of economic boom, 10% during normal economic periods, and 5% during a period of recession if the probabilities of these economic environments are 20%, 65%, and 15%, respectively?

Economic Environment	Expected Return	Probability of Environment
Boom	20%	20%
Normal	10%	65%
Recession	5%	15%

SHOW ALL YOUR CALCULATIONS TO GET CREDIT. IF YOU USED A FINANCIAL CALCULATOR OR EXCEL SPREADSHEET, LIST THE INPUTS YOU USED.