Homework Help: statistics

Posted by Tanya on Saturday, November 19, 2011 at 1:30am.

A student is taking a multiple choice exam. There are five possible answers for each question.
What is the probability the student will answer the first question correctly?
What is the probability that the student will answer the first question incorrectly?

statistics - PsyDAG, Sunday, November 20, 2011 at 4:23am
If just guessing, the probability of answering correctly = .2, incorrectly = .8.

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