What does probability that your guessing mean? Reply #25 – 2015-09-26 10:13:49 Quote from: greynol on 2015-09-25 22:01:17I still much prefer (but hey, it ain't my call):"Probability that you can do the same or better by flipping a coin:"It makes perfect sense for all possible scores (0/N, 1/N ... N/N)....because that is essentially the definition of the value...expressed in lay terms. Agree. I have proposed similar (i.e. compare to coinflipping) before. E.g. "p-value (i.e. the chance to achieve the same score or better by tossing a coin): ", but one can rewrite it at the risk of introducing less-than-neutral wording:"Total: 9/13, p=0.133.Your score would beat 87 out of 100 coin-tossers. To be confident that you are better than the coin, a common statistical threshold is 95."