but the survey in question finds that this is true of respondents, who were 17% of those the survey was sent to
Only 20% of the respondents gave a response to that particular question (thanks to Denreik for drawing my attention to that fact, which I verified). Of the initially contacted 4271 researchers, 738 gave responses (17% of 4271), and 149 (20% of 738) gave a probability for the “extremely bad” outcome on the non-trick version of the question (without the “human inability to control” part).
Only 20% of the respondents gave a response to that particular question (thanks to Denreik for drawing my attention to that fact, which I verified). Of the initially contacted 4271 researchers, 738 gave responses (17% of 4271), and 149 (20% of 738) gave a probability for the “extremely bad” outcome on the non-trick version of the question (without the “human inability to control” part).