$.$ Ripken Iron Works faces the following probability distribution: Stock$$s forecasted

State of Probability of Return if this

the Economy State Occurring State Occurs

Boom $0\mathrm{.}2540\%$

Normal $0\mathrm{.}5020\%$

Recession $0\mathrm{.}250\%$

What is the coefficient of variation on the company$$s stock?