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MATH Prob.

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Find the probability of correctly answering the first 4 questions on a multiple choice test if random guesses are made and each question has 3 possible answers.

  • MATH Prob. - ,

    Each test has 3 possible answers, so the probability of getting 1 question right is 1/3.

    The probability of getting 4 such questions right in a row can be found by (1/3)^4 because there are 4 questions.

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