Hello David,
The button for Statistic Chart looks like the image below.
However, if you do not have the said button, the components of your Office program might have corrupted. That being said, we will be performing some troubleshooting steps to resolve and to isolate this concern. First, let us check if you have the Statistic Chart enabled. Here's how:
- Click on the File tab.
- Select Options.
- Choose Advanced.
- Under Display options for this workbook, look for For objects, show.
- Select All.
- Hit OK.
Once done, check if you will have the said button. If not, we advise starting your Excel in Safe Mode. Doing so will start your Office programs in its basic state which will help us identify if the issue may have something to do with add-ins or with the app itself. The instructions on how to do so are posted in this article.
Hope this information helps you. In case you need further assistance, don't hesitate to post back.