Please help with A-C if possible

Integrative - Expected return, standard deviation, and coefficient of variation An asset is currenily being considered by Perth industrios. The probability distnbution of expecled roturns for this asset is shown in the following table, a. Calculate the expected value of return, f, for the assit. b. Calculate the standard deviation, f for the assel's retums. c. Calculate the coetficient of variation, CV, for the assers returms: a. The expected vatue of return, r. for the asset is 4. (Round to two decinal places.) Data table (Click on the icon here in order to copy the contents of the data table below into a spreadsheet.)