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	(50%)
Below average	0.2	(14)
Average	0.4	12
Above average	0.2	32
Strong	0.1	68
	1.0

Calculate the stock's expected return. Round your answer to two decimal places. %

Calculate the stock's standard deviation. Do not round intermediate calculations. Round your answer to two decimal places. %

Calculate the stock's coefficient of variation. Round your answer to two decimal places.