XYZ stock's returns will have the following probability distribution during the possible states of the economy. a. Calculate the expected return on XYZ stock. b. Calculate the standard devivation of...

XYZ stock's returns will have the following probability distribution during the possible states of the economy.
a. Calculate the expected return on XYZ stock.
b. Calculate the standard devivation of XYZ stock returns.
c. Calculate the coefficient of variation of XYZ stock.
State of Economy Probability Return

Boom 30% 32.50%

Normal 40% 10.25%

Recession 30% -15.75%