S. Measuring stand-alone risk using realized (historical data Renuns earned over a given time pered are called reality returns. Historical data on realized rename is often used to estimate future results. Analysts. across companies use realzed stock returns to estimate the risk of a stock. Consider the case of Cestial Canc Cosmctics Inc occ): Five years of realized return for CCC are given in the folowing teble. Remember 1. Whle CCC was started 40 years ago, its common stock has been publidy traded to the past 25 years. 2. The returns on its equry are calated withmetic returns. 3. The historical returns tor CCC tor 2014 to 2018 are: 2016 2017 2014 11.20 2015 7.654 2018 5.85% Steck return 13.50% 18.00 Given the preceding data, the average realzed renamon cor's sterk is The preceding data series represents of CCC's historical returns. Based on this conclusion, the standard deviation of CCC's historical i restors expect the average reeled relut from 2014 lu 2010 OT CUC's stock lo continue to the future, ils cellen of varion (CV) wil te