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On a Multiple Choice Test with 27 Questions, Each Question

Question 112

Multiple Choice

On a multiple choice test with 27 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the variance for the number of correct answers.


A) 25.6
B) 2.3
C) 50.6
D) 5.1

Correct Answer:

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