0.5 or 1/2. To find this answer, you need to undo operations, (in this case, multiplication.) Use the opposite (division). 1/2 =0.5, and if you plug it back in, you get 2 x 0.5 =1, which is a true statement. Use 1/2 if you need it in fraction form.
I would say that coordination doesn't belong. The other words seem to do with a person's personality or mentality, while coordination is more of a physical ability.
