with show work please

Kyle's Shoe Stores Inc. is considering opening an additional suburban outlet. An aftertax expected cash flow of $140 per week is anticipated from two stores that are being evaluated. Both stores have positive net present values. Site A Site B Probability Cash Flows Probability Cash Flows 6.2 86 6.2 4| 6.2 146 6.1 76 6.3 156 6.2 14| 6.3 176 6.4 196 6.1 21| a. Compute the coefficient of variation for each site. (Do not round intermediate calculations. Round your answers to 3 decimal places.) Coefficient of Variation -l -l