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

Probability	A		B
0.1	(12	%)	(34	%)
0.2	4		0
0.5	10		18
0.1	20		27
0.1	34		36

1. Calculate the expected rate of return, , for Stock B ( = 10.00%.) 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 = 18.40%.) Do not round intermediate calculations. Round your answer to two decimal places.

   %

   Now calculate the coefficient of variation for Stock B. Do not round intermediate calculations. Round your answer to two decimal places.

3. Assume the risk-free rate is 2.5%. What are the Sharpe ratios for Stocks A and B? Do not round intermediate calculations. Round your answers to four decimal places.

   Stock A:

   Stock B: