Tim Trepid is highly risk-averse while Mike Macho actually enjoys taking a risk. Investments Buy stocks Buy bonds Buy commodity futures Buy options Returns: Expected Value Buy stocks Buy bonds Buy commodity futures Buy options $ 8,970 7,410 22,700 13,100 a-1. Compute the coefficients of variation. Note: Round your answers to 3 decimal places. Coefficient of Variation Standard Deviation $ 6,270 2,480 30,900 14,700