A stock's returns have the following distribution: Demand for the Company's Products Probability of this Demand Occurring Rate of Return if this Demand Occurs Weak 0.1 (34%) Below average 0.2 (10) Average 0.3 17 Above average 0.3 25 Strong 0.1 65 1.0

Assume the risk-free rate is 3%. Calculate the

a. stock's expected return,

b. standard deviation,

c. coefficient of variation,

d. Sharpe ratio. :