In this post, we show you how to add error bars to a Microsoft Excel spreadsheet. You can use Error bars for standard deviation & trending margin of error.

If you create charts with Excel, error bars allow you to visualize margins of error for data points. Here's how to add error bars in Excel.

The next step is to tell Logger Pro that you want to use the "error" column as the uncertainty for the y-column. Double click on the y-column in the data set (at the top).