From the My Studies page, click on the required study.
Click on the Results tab.
Be sure you have selected the Dashboard you wish to have the Graph added to.
Click on the Hamburger Menu to the right of the screen and select Show Dashboard Filters.
This will open a list of options for you to filter by. Select as required and once finished click on the Apply Filters button.
To close this section, click on the Done Filtering button.