Question 14: What is the probability of someone guessing incorrectly 13 times?
I *think* about 0.21%, but probability was never my strong point...
0.22% I make it (based on 5 questions with 2 answers, 3 questions with 3 answers, 5 questions with 4 answers) - I guess you have rounding errors I got 5 right selecting randomly in order to check the number of answers.
Though looking at those results, some of them are worse than you'd expect from randomly guessing (e.g. only 48% get the True/False one about lasers correct, and only 47% get a True/False on atoms correct)
It's even worse if you select subsets of the demographic - only 27% of over 65s got the laser one correct. The nitrogen question also has worse stats than you'd expect from random guessing, should be 25% and those who didn't go to college only got 12%!
Which does bring up the idea of an interesting experiment. Over 65 women who didn't go to college in one room, trained monkeys in the other. Cherry pick the questions to prove just how much more intelligent the monkeys are