3-69. A multiple choice test contains 25 questions, each with four answers. Assume a
Chapter 3, Problem 3-69(choose chapter or problem)
3-69. A multiple choice test contains 25 questions, each with four answers. Assume a student just guesses on each question. (a) What is the probability that the student answers more than 20 questions correctly? (b) What is the probability the student answers less than 5 questions correctly?
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