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Each of five questions on a multiple choicexamination has four choices, only one ofthe is correct. A student is attempting toguess the answers. The random variable xis the number of questions answeredcorrectly.(a) What is the probability that thestudent will get exactly threeanswers correct?What is the probability that thestudent will get atmost threeanswers correct?What is the probability that thestudent will get at least one correctanswer? |
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Answer» actually I m reach at this topic. sorry |
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