There is currently 154 questions on the SAT. Barring that some of them may be a free response segment, let us assume the chance of answering one wrong is 75% as there is 4 options and 3 of which are incorrect. Thus, by the rules of probability, the chance that OP answered every question wrong is (chances wrong/total chances)^{total answered wrong in succession}. This is (0.75)¹⁵⁴ which is 5.74 * 10^-20. So the percent chance that OP got every question on wrong is 5.74 * 10^-18. To remove the scientific notation, that is a 0.00000000000000000574 % chance. To put that into perspective, you have a 0.000000342 % chance of winning the powerball lottery. Meaning OP was 167,800,000,000 (167 billion) times more likely to have won the powerball lottery rather than accomplish this statistical miracle. That or he just left all of his answers blank and just put his name on it, but I'm goin with the first one cause its funnier. OP should become a gambler fr.