Given the poor quality of the questions in that poll, almost any results are possible.
On the subject of poor quality questions, one of the the questions to test the public's knowledge of science was
Electrons are smaller than atoms. (True/False)
46% of the general public said true and, at first, I was thinking that for more than half of the general public to not understand about atoms and electrons was a pretty poor showing.
But then I got to thinking about whether an electron is, in fact, smaller than an atom. Sure, the rest mass of an electron is much smaller than the rest mass of an atom. Maybe that's what the question was trying to ask. But the way the question is worded seems to imply a spatial size. When you're dealing with objects as light as electrons, the whole notion of size is non-intuitive (probability distributions described by wave functions).
Maybe they had their reasons for not simply asking whether an electron was more massive than an atom - or maybe whoever put the survey together some gaps in their own science education.