1. Expected return. A stocks returns have the following distribution;

Denand for the companys product	Probability of this demand occurring	Rate of return if this demand occurs
Weak	0.1	(50%)
Below average	0.2	(5%)
Average	0.4	16
Above average	0.2	25
Strong	0.1	60
	1.0

Calculate the stocks expected return, standard deviation . and the coefficient of variation.