Five years of realized returns for Bl.M are glven in the following table. Remember: 1. While BLM was started 40 years ago, its common stock has been publicly traded for the post 25 yearsi 2. The returns on its equity are calculated as arithmetic returns. 3. The historical returns for BLM for 2012 to 2016 are: Given the preceding dato, the wveroge realized return on BtMis stock is The precedied data series represents. of BLM's historical returns. Flased an this conchision, the standard deviation of BLM? histoiksal retuans is