Coefficient of variation Metal Manufacturing has isolated four alternatives for meeting its need for increased production capacity. The following table summarizes data gathered relative to each of these alternatives,

a$.$ Calculate the coefficient of variation for each alternative.

b$.$ If the firm wishes to minimize risk, which altemative do you recommend? Why?

a$.$ The coefficient of variation for alternative $A$ is

$($Round to three decimal places.$)$

Data table

$($Click on the icon here $$ in order to copy the contents of the data table below into a spreadsheet.$)$

$\backslash$table$[[$Alternative$,\backslash$table$[[$Expected$],[$return$]],$Standard deviation$],[$A$,20\%,7\mathrm{.}0\%$