You are given the following probability distribution for CHC Enterprises:

State of Economy	Probability	Rate of return
Strong	0.20	22	%
Normal	0.45	10	%
Weak	0.35	-4	%

What is the stock's expected return? Do not round intermediate calculations. Round your answer to two decimal places.

%

What is the stock's standard deviation? Do not round intermediate calculations. Round your answer to two decimal places.

%

What is the stock's coefficient of variation? Do not round intermediate calculations. Round your answer to two decimal places.