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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 Happy Dog Soap tnc. (Happy Dog) are glven in the following table: 1. While Happy Dog was started 40 yenrs age, lts common stock has been publicly traded for the past 25 years. 2. The returns on Happy Dog's equity are calculated as arithmetic returns. Given this return dato, the average reblized return on HappY Dog Sosp lncis stock is The preceding data series represents a sample of Happy Dog's historical returns, Based on this conclusion, the standard deviation of Happy Dog's historical returns is If investbrs expect the average realized return on Happy Dog Soap tncis stock from 2016 to 2020 to continue inta the future, its expected coefficient of variation (CV) is expected to equal