In a multiple-choice test, each question is to be answered by selecting 1 out of 3 choices of which only 1 is right. If there are 10 questions in a test, what is the probability of getting 3 right of pure guesswork?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 6ECP: In Pennsylvania’s Cash 5 game, a player chooses five different numbers from 1 to 43. If these five...
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In a multiple-choice test, each question is to be answered by selecting 1 out of 3 choices of which only 1 is right. If there are 10 questions in a test, what is
the probability of getting 3 right of pure guesswork?
Transcribed Image Text:In a multiple-choice test, each question is to be answered by selecting 1 out of 3 choices of which only 1 is right. If there are 10 questions in a test, what is the probability of getting 3 right of pure guesswork?
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