Stocks A and B have the following probability distributions of expected future returns:

Probability	A	B
0.1	(12%)	(33%)
0.2	3	0
0.3	16	22
0.3	19	30
0.1	36	36

1. Calculate the expected rate of return, r_B, for Stock B (r_A = 13.50%.) Do not round intermediate calculations. Round your answer to two decimal places. %

2. Calculate the standard deviation of expected returns, _A, for Stock A (_B = 20.02%.) Do not round intermediate calculations. Round your answer to two decimal places. %

3. Now calculate the coefficient of variation for Stock B. Round your answer to two decimal places.