Add chart to your document...

Option 1: Alt-PrntScrn will capture the active window with the chart in memory, then you can open Word or PowerPoint and paste the chart using Ctrl-V. Then you can trim out unnecessary margins in PowerPoint

Option 2: install a free screen capture software, e.g. Gadwin PrintScreen (download) Once you see the icon in the task bar, click it to setup capturing a rectangular portion of the screen (in Properties). Then hit PrntScrn and draw a rectangle around the chart you want to capture

Option 3 (the easiest!): click "Printable Chart", then right-click on the chart and select "Save Picture As...". The image file will saved on your computer, then you can insert it in your report