3. In a multiple-choice test, each question has 4 options, and a student randomly guesses the answers. If there are 10 questions, what is the probability that the student gets exactly 5 correct answers?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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3. In a multiple-choice test, each question has 4
options, and a student randomly guesses the
answers. If there are 10 questions, what is the
probability that the student gets exactly 5
correct answers?
Transcribed Image Text:3. In a multiple-choice test, each question has 4 options, and a student randomly guesses the answers. If there are 10 questions, what is the probability that the student gets exactly 5 correct answers?
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