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A student is taking a quiz with nine questions. Each question has answers: A, B, C,...

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Statistics

A student is taking a quiz with nine questions. Each questionhas answers: A, B, C, or D. The student guesses on eachquestion
     
      a) how many repetitions for thisproblem?
      b) what is the probability ofsuccess on the 1st repetition?
   c) what is the probability of guessing 3 answerscorrectly?

d) what is the probability of guessing at most 2 correct?

Answer & Explanation Solved by verified expert
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A student is taking a quiz with nine4 questionsEach question has four options out of which only one iscorrectHence there are four possibilities for each questionIf the student guesses the answer    See Answer
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