I will have a big exam next week that involves 64 Single-choice questions. There will be two statements of which only one will be correct. I will need to mark only the correct answer.
For the correct answer +1 point will be awarded. The wrong answer is a negative point (-1). Not answering the question will result in 0 points.
My question is if I can say for sure I can answer at least half of the questions with certainty should I take the 50/50 chance with the remaining of the questions with risking negative points or is not answering anything I am not sure about the smarter choice. Or is it basically the same since it is 50/50 and it should cancel itself out. I am confused how to approach this. Please help.