1 in 10 Will Get Everything Wrong

Over at the Daily Dish, Patrick Appel thinks that it is amazing that "7% of those who voted for John McCain do not believe Hawaii to be a part of the United States". I think that this is very consistent with just about all opinion polls I have seen. In general, if there is an answer (or set of answers) that is logically and/or factually impossible, about 10% of people will answer it wrong.

For example, this Fox News poll taken in 2004 shows that 85% of Americans believe in heaven, but only 74% believe in hell. Assuming that the group of people who believe in hell also all believe in heaven, that leaves about 11% of Americans believing in heaven but not hell. Sooooo.... no matter what you do, you will go to heaven. I seriously doubt that 11% of Americans believe that, but 11% of Americans say they believe that.