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A multiple-choice test contains 40 questions with answer choices A, B, C, D, and E. Only one answer choice to each question represents a correct

A multiple-choice test contains 40 questions with answer choices A, B, C, D, and E. Only one answer choice to each question represents a correct answer. Find the probability that a student will answer exactly 8 questions correctly if he or she makes random guesses on all 40 questions.

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