A quiz has 5 multiple-choice questions. Each question has 4 answer choices, of which 1 is correct answer and the other 3 are incorrect Suppose that you guess all the answers. What is the probability of getting exactly 4 questions right and 1 wrong? A 15/1024 B 5/1024 C 15/256 D 1/1024

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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A quiz has 5 multiple-choice questions. Each question has 4 answer choices, of which 1 is correct
answer and the other 3 are incorrect. Suppose that you guess all the answers. What is the
probability of getting exactly 4 questions right and 1 wrong?
A 15/1024
B 5/1024
C 15/256
D
1/1024
Transcribed Image Text:A quiz has 5 multiple-choice questions. Each question has 4 answer choices, of which 1 is correct answer and the other 3 are incorrect. Suppose that you guess all the answers. What is the probability of getting exactly 4 questions right and 1 wrong? A 15/1024 B 5/1024 C 15/256 D 1/1024
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