4. Measuring standalone risk using realized data 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 Blue Llame Mining Inc. (Blue Llama) are given in the following table: Aso note that: 1. While Blue Uama was started 40 years ago, its common stock has been publicy traded for the past 25 years. 2. The returns on Bhe lleme's equity are calculated as arithmetie feturns. Given this return dato, the average realited return on Blue Lama Mining Inci's stock The preceding dota senes represents a sample of Blue Lamo's histoncal retums. Based on this conclusion, the standard deviation of Blue Lama's historical returns is If investors expect the average realized return on Blue Lama Mining Inci's stock from 2016 to 2020 to continue into the future, its expected coefficient of variation (CV) is expected to equal