SOLUTION: If the probability of writing the correct answer to a question on an exam is 2/5, what are the odds against writing the correct answer?

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Question 1160107: If the probability of writing the correct answer to a
question on an exam is 2/5, what are the odds against
writing the correct answer?
Answer by ikleyn(52833) About Me  (Show Source):
You can put this solution on YOUR website!
.

Three against two.