I doubt most schools, unless they're insanely competitive, would even look at your engineering GPA. I spoke to a grad counselor from one of the schools I'm applying to and she said that the staff wouldn't even look at the GPA from my second major because it has nothing to do with the program I'm applying to. They'll probably be mostly concerned with your statistics GPA and overall GPA. Your engineering GPA also isn't even that bad, so it shouldn't worry you too much. Then again, I have no idea what schools you're applying to. If you give me an idea as to which ones you're thinking about, I might be able to give you a better opinion. I know that my old roommate did not have the best GPA and scored on the lower end of whatever test he needed to take to apply to his program (probably the physics GRE) but still got into Stony Brook University, which is a research school that is mostly known for its science programs.