The returns for stock Z are: Year       Z        1      -0.0…

The returns for stock Z are: Year       Z        1      -0.02    2      -0.04    3      -0.06    4       0.08 a.  Calculate the risk of stock Z. [Do not type your answer in Canvas] [8 points] b.  Calculate the geometric average of stock Z.  [Do not type your answer in Canvas] [4 points]