Homework Help: elementary stats

Posted by Rose Bud on Thursday, February 23, 2012 at 11:18pm.

On a multiple choice test with 11 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the mean for the number of correct answers.

elementary stats - PsyDAG, Friday, February 24, 2012 at 11:25am
1/4 * 11 = ?

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