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On a multiple choice test with 21 questions, each question has four possible answers, one of which is correct. for students who guess at all answers, find the standard deviation for the number of correct answers

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johndorceus14

Answer:

Hello there, the answer is 5.25, or  5 1/4

Step-by-step explanation:

Since it has 21 questions, 4 choices each, we should divide 21÷4= 5.25

Inside of fraction form, the answer is 5 1/4

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