 Statistics and Excel, Population Variance and Standard Deviation. Get ready, take it a deep breath, holding it in for 10 seconds and looking forward to a smooth soothing Excel. Here we are in Excel. If you don't have access to this workbook, that's okay because we basically built this from a blank worksheet starting in a prior presentation, so you could start back there. However, if you want to start here with simply a blank worksheet, you can do that as well. If you do have access to this workbook, there's three tabs down below. Example, practice blank. Example, in essence, answer key. Practice tab, having pre-formatted cells so you can get right to the heart of the practice problem. Blank tab is where we started with just a blank worksheet so we can practice formatting cells within Excel as we work through the practice problem. So last time what we did is to try to think about...