Problem $13-10($Algo$)$ Risk$-$averse $[$LO$13-2]$

Tim Trepid is highly risk$-$averse while Mike Macho actually enjoys taking a risk.

a$-1.$ Compute the coefficients of variation.

Note: Round your answers to $3$ decimal places.

a$-2.$ Which one of the following four investments should Tim choose?

Buy bonds

Buy stocks

Buy commodity futures

Buy options

b$.$ Which one of the four investments should Mike choose?

Buy bonds

Buy stocks

Buy commodity futures

Buy options