$4.$ Measuring standalone risk using realized dataReturns earned over a given time period are called realized returns. Historical data on realized returns is often used to estimate future results. Analysts across companies use realized stock returns to estimate the risk of a stock.Five years of realized returns for Celestial Crane Cosmetics Inc. $($Crane Cosmetics$)$ are given in the following table: $20122013201420152016$Stock return$22\mathrm{.}50\%15\mathrm{.}30\%27\mathrm{.}00\%37\mathrm{.}80\%11\mathrm{.}70\%$Also note that:$1.$While Crane Cosmetics was started $40$ years ago, its common stock has been publicly traded for the past $25$ years$\mathrm{.}2.$The returns on Crane Cosmetics's equity are calculated as arithmetic returns.Given this return data, the average realized return on Celestial Crane Cosmetics Inc.s stock is $.$The preceding data series represents of Crane Cosmeticss historical returns. Based on this conclusion, the standard deviation of Crane Cosmeticss historical returns is $.$If investors expect the average realized return on Celestial Crane Cosmetics Inc.s stock from $2012$ to $2016$ to continue into the future, its expected coefficient of variation $($CV$)$ is expected to equal $.$