Agnosticism

1 indicates "100 per cent probability of God." A person ranking at 7 on the scale would be a person who says "I know there is no God..." Dawkins places himself at 6 on the scale, which he characterizes as "I cannot know for certain but I think God is very improbable, and I live my life on the assumption that he is not there", but leaning toward 7. About himself, Dawkins continues that "I am agnostic only to the extent that I am agnostic about fairies at the bottom of the garden.
via en.wikipedia.org