help me understand questions a-c step by step

Integrative - Expected return, standard deviation, and coefficient of variation An asset is currently being considered by Perth Industries. The probability distribution of expected returns for this asset is shown in the following table, a. Calculate the expected value of return, r, for the asset. b. Calculate the standard deviation, r, for the asset's returns. c. Calculate the coefficient of variation, CV, for the asset's returns. a. The expected value of return, r, for the asset is \%. (Round to two decimal places.) Data table (Click on the icon here D in order to copy the contents of the data table below into a spreadsheet.) Integrative - Expected return, standard deviation, and coefficient of variation An asset is currently being considered by Perth Industries. The probability distribution of expected returns for this asset is shown in the following table, a. Calculate the expected value of return, r, for the asset. b. Calculate the standard deviation, r, for the asset's returns. c. Calculate the coefficient of variation, CV, for the asset's returns. a. The expected value of return, r, for the asset is \%. (Round to two decimal places.) Data table (Click on the icon here D in order to copy the contents of the data table below into a spreadsheet.)