7 M DB). Calculating retums and variability - Excel FILE HOME INSERT PAGE LAYOUT FORMULAS DATA REVIEW VIEW X Calibri %6 B- Paste BIU...AAlignment Number Conditional Format as Cell Formatting Table - Styles Clipboard Font Styles to Cells Editing D F E G H 1 J K AB 3 You've observed the following returns on Crash-n-Burn Computer's stock over the past five years. What is the arithmetic average return? The variance? The standard deviation? 4 5 7 8 9 Year 1 2 3 4 5 Returns 7% -13% 21% 34% 15% 10 11 12 13 14 Complete the following analysis. Do not hard code values in your calculations. Make sure to use the "sample Excel formulas in your calculations. You must use the built-in Excel functions to answer this question. 15 16 17 Arithmetic average return 18 Variance 19 20 Standard Deviation 21 Sheet1 A MacBook Pro cerebrne