Returns 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 (CCC) Inc. are given in the following table. Remember: While CCC was started 40 years ago, its common stock has been publicly traded for the past 25 years. The returns on its equity are calculated as arithmetic returns. Given the preceding data, the average realized return on CCC's stock is The preceding data series represents of CCC's historical returns. Based on this conclusion, the standard deviation of CCC's historical returns is If investors expect the average realized return on CCC's stock from 2011 to 2015 to continue into the future, what will be its coefficient of variation (CV)? 0.45 0.38 0.83 0.52