"John Knight" <johnknight at usa.com> wrote in message
news:Ce7%8.15841$Fq6.1704086 at news2.west.cox.net...
>> If the test designers equally distributed the correct answers over A., B.,
> C., and D. (which they did), then the correct answer will be selected 25%
of
> the time (if all students just guessed at random).
Random guesses are independent of what the actual answer is. That's why
thy're called 'guesses'.