If you were to calculate the standard deviation on the worksheet, without the STDEV.P function, hereâs how you would do it. 1  Find the average of the numbers in the pivot table data. 2  From each number, subtract the average. 3  Square the calculated difference for each number. 4  Find the average of the squared difference. 5  Find the square root of the average.
A pivot table is a tool that you can use to summarize data when you have a lot of it in a worksheet. A pivot table can count totals, give an average of the data, or sort data â in addition to other things. In this article, we are going to go in-depth as we learn to create and work with pivot tables.
Part 1 of 3: Building the Pivot Table. 1. Load the spreadsheet you want to create the Pivot Table from. A Pivot Table allows you to create visual reports of the data from a spreadsheet. You can perform calculations without having to input any formulas or copy any cells.