A.

Calculate the expected return for a stock, given the following information about its returns in different states of the economy.

State of economy	Probability	Stock return
Recession	0.13	-0.12
Normal	0.38	0.05
Boom	--	0.22

Enter return in percents, not in decimals.

B.

Given the following information about a stock's return in the various states of the economy, calculate the standard deviation of its return.

State of economy	Probability	Stock return
Recession	0.18	-0.17
Normal	0.32	0.05
Boom	--	0.26

Enter answer in percents, accurate to two decimal places.