It’s deceptively simple.

For all of you who hate multiple choice tests, this will only confirm that your hatred is justified:

If you choose an answer to this question at random, what is the chance you will be correct?

A) 25%
B) 50%
C) 60%
D) 25%

You can get lost reading the hundreds of comments about it at these sites:

– Raymond Johnson, Google+>>
– Best statistics question ever, Flowing Data>>