Probability theory

[abstibus]

Any mathematics gurus out there?
An examination question is in paragraphs with 25 spaces. Each space has one correct and one incorrect answer.
What is the probability of candidates achieving 100% overall?

[abstibus]

Methyl
That's a fantastic tool.
I wish I'd had something like this when the maths teacher was pulling my hair.

[factor-fiction]

....or just type 2^25 into Google search box and it works it out for you
http://www.google.co....58fd&biw=1080&bih=623

[wildwood]

I couldn't figure out how a question would have 25 correct and 25 incorrect answers.

[factor-fiction]

Hi wildwoood- it would have been a 'multiple choice' type exam where you were given two answers, A and B, and asked to pick the right answer