Select the spreadsheet formula that would correctly calculate the average (mean) of the following values: 3, 2, 6, and 8. Multiple Choice = 3 + 2 + 6 + 8 / 4 = (4 + 2 + 5 + 5) * 4 = (3 + 2 + 6 + 8) * 5 = (3 + 2 + 6 + 8) / 4