Use the data shown in the following table:

$.$

a$.$ Compute the average return for each of the assets from $1929$ to $1940($the Great Depression$).$

b$.$ Compute the variance and standard deviation for each of the assets from $1929$ to $1940.$

c$.$ Which asset was the riskiest during the Great Depression? How does that fit with your intuition?

Note: For all your answers type decimal equivalents. a$.$ Compute the average return for each of the assets from $1929$ to $1940($the Great Depression$).$