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.
To insert a pivot table, execute the following steps. 1. Click any single cell inside the data set. 2. On the Insert tab, in the Tables group, click PivotTable. The following dialog box appears. Excel automatically selects the data for you. The default location for a new pivot table is New Worksheet. 3. Click OK.