A stock's returns have the following distribution

A stock's returns have the following distribution

Demand for the                       Probability of This       Rate of Return If This

Company’s Products    Demand Occurring      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 stock's expected return, standard deviation, and coefficient of variation. 11.4 may be the answer