Maria is taking a multiple-choice test with 5 options for each question, and 3 marks for each correct answer. The test is negatively marked, which means she is deducted points for each answer she gets wrong. She will not be deducted any marks if she does not attempt the question. Maria is trying to figure out if it is beneficial to guess the answer to a question once she has narrowed down the number of potentially correct answers. Assume that once Maria has narrowed down the questions, all remaining answers are equally likely to be correct from Maria’s point of view. A guess is worthwhile if it is a better option than not attempting the question. Question On the first question, Maria will lose 1 mark if she is incorrect. What is the minimum number of answers Maria will need to eliminate for a guess to be worthwhile?
Maria is taking a multiple-choice test with 5 options for each question, and 3 marks for each correct answer. The test is negatively marked, which means she is deducted points for each answer she gets wrong. She will not be deducted any marks if she does not attempt the question. Maria is trying to figure out if it is beneficial to guess the answer to a question once she has narrowed down the number of potentially correct answers. Assume that once Maria has narrowed down the questions, all remaining answers are equally likely to be correct from Maria’s point of view. A guess is worthwhile if it is a better option than not attempting the question. Question On the first question, Maria will lose 1 mark if she is incorrect. What is the minimum number of answers Maria will need to eliminate for a guess to be worthwhile?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 12CYU
Related questions
Question
Maria is taking a multiple-choice test with 5 options for each question, and 3 marks for each correct answer. The test is negatively marked, which means she is deducted points for each answer she gets wrong. She will not be deducted any marks if she does not attempt the question. Maria is trying to figure out if it is beneficial to guess the answer to a question once she has narrowed down the number of potentially correct answers. Assume that once Maria has narrowed down the questions, all remaining answers are equally likely to be correct from Maria’s point of view. A guess is worthwhile if it is a better option than not attempting the question.
Question
On the first question, Maria will lose 1 mark if she is incorrect. What is the minimum number of answers Maria will need to eliminate for a guess to be worthwhile?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning