A multiple-choice test contains 25 questions, each with four answers. Assume a student
Chapter 3, Problem 3-86(choose chapter or problem)
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 five questions correctly?
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