In previous articles we discussed adding fixed error bars and Standard Deviation error bars to Excel charts. The last option available on the Format Error Bars dialog is the standard error, short for "standard error of the mean". Using the same data set that we used for the post Standard Deviation Error Bars in Excel, [...]
We discussed inserting error bars into an Excel chart in the post Error Bars in Excel. We showed how to add constant errors, constant fractional errors and error bars that vary with every data point. We didn't discuss the source of these errors just how to add them to the chart. Excel has other options [...]
Error bars on a chart/graph provide a visual representation of our uncertainty of knowledge about the values of the data points. These are helpful in understanding the accuracy of our data and have the benefit of being relatively easy to interpret. We are going to discuss how to add error bars to charts in Excel [...]
