If you are choosing at random, the odds are better for 0 than 100. If you know all the correct answers, 0 is still easier than 100. If you are just doing an honest exam, the odds of zero are very small because most exams are designed so that students will know the answer to about 50% of the test.
No you are assuming a stochastic system when an exam is a social one. I want an exam that fairly assesses my students meaning that a decent student should get a B. That puts a real 0 at well beyond 3 standard deviations from the mean, even if I transform the data to logarithmic.
11.7k
u/Available-Bee-5385 12d ago
Getting 0 on a multiple choice is a statistical accomplishment greater than getting 100