The stock of Business Adventures sells for $50 per share. Its likely dividend payout and end-of-year price depend on the state of the economy by the end of the year as follows:

1) The expected return of the stock is ______ %

State of the economy	Probability	Dividend	Stock Price
Boom	0.2	2	60
Normal	0.5	1	53
Recession	0.3	0	45

2) Continued with previous question. The estimated standard deviation of the stock is _______ %