So, passing the USMLE Step exams really isn't anything special. In the current system, passing the exam with a bad score does not guarantee you a residency. Some people do not get residencies. Hopefully congress will fix the problem and dedicate more money and resources to residencies, but who knows.
You can pass the USMLE Step 1 exam with a 188. However, you probably won't get into any residency with a 188. You would have to have many other things going for you. The least competitive residency (Family Practice) averages around 210 I believe, and the competitive ones (Derm, Plastic, ENT, etc.) are more like 230-240. Plus, you have to do extremely well on Step 2.
I'm curious to see a correlation of MCAT scores to Step 1/2 numerical scores, not simply passing.