Belief doesn't require "fact" or "knowing". This question doesn't ask if you know God exists or not, just if you believe he does or not.
This is why I don't understand Agnosticism too well. "I don't know" works if someone asks "Does God exist" to you, but "Do you believe God exists" is a whole different question, they're not asking if you know he does or not.
This is why I don't understand Agnosticism too well. "I don't know" works if someone asks "Does God exist" to you, but "Do you believe God exists" is a whole different question, they're not asking if you know he does or not.