Problem 8-1 Expected return

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	0.2	-34%
Below average	0.2	-6
Average	0.4	13
Above average	0.1	27
Strong	0.1	63
1.0

1. Calculate the stock's expected return. Round your answer to two decimal places.%
2. Calculate the stock's standard deviation. Round your answer to two decimal places.%
3. Calculate the stock's coefficient of variation. Round your answer to two decimal places.