No, it's not recommended, or possible, with your setup. You would need at least 2 of the same size/speed disk or SSD to run a RAID. Here is a quick video that will tell you what RAID is for and how it works: https://www.youtube.com/watch?v=eE7Bfw9lFfs
For your setup you be best served by putting your OS/Programs on the SSD. Games/storage/media/documents on the HDD.