[Borodog]

David,

There is no way to say without knowing what Y is and the backgrounds of the people answering the survey.

Edit: On second thought, I agree with not a model.

Re-edit: On Third thought, maybe I don't.

Re-re-edit: Yes, yes I do. But as soon as you know ANYTHING about Y and the survey group, then the trend can be thrown out the window if necessary.